正如你在下面看到的，当我使用landscape环境旋转页面或表格时，上面页面的第二列将被忽略并留空。我如何才能提取剩余的文本和标题部分偏见风险到横向页面上方的列并允许文本在横向页面周围自由流动？
下面是一些代表我的文本的虚拟代码：
\documentclass[10pt,twocolumn]{article}
\usepackage[margin=0.7in]{geometry}
\usepackage[english]{babel}
\usepackage{pdflscape}
\usepackage{afterpage}
\usepackage{lipsum}
\usepackage{array,multirow}
\newcommand{\passosic}{low surgical risk with uncomplicated cholecysitis}
\newcommand{\passosec}{renal or hepatic impairment; \newline immunosuppression}
\newcommand{\darziic}{1st time abdominal surgery}
\newcommand{\darziec}{immunocompromise; \newline DM; \newline previous biliary duct surgery or ERCP within 1 week of surgery}
\newcommand{\matsuiic}{N/A}
\newcommand{\matsuiec}{regular insulin or steroid use; \newline on HD; \newline severe comorbidities such as Child C liver cirrhosis; \newline receiving chemotherapy}
\newcommand{\ruangsinic}{N/A}
\newcommand{\ruangsinec}{previous biliary tract surgery; \newline prosthetic heart valve; \newline concomitant infection; \newline single port procedure}
\newcommand{\turkic}{ASA 1 or ASA 2}
\newcommand{\turkec}{$\geq$ ASA 3; \newline previous biliary tract surgery; \newline pre-op WBC $>$ 12.5}
\newcommand{\naqviic}{N/A}
\newcommand{\naqviec}{high risk of infection (i.e. DM, steroid use, immunosuppression)}
\newcommand{\hassanic}{ASA 1 or ASA 2}
\newcommand{\hassanec}{prosthetic valves/joints; \newline DM; \newline high risk of infection (undefined); \newline pregnant or lactating}
\newcommand{\sharmaic}{N/A}
\newcommand{\sharmaec}{immunosuppression; \newline cardiac disorders requiring prophylactic antibiotics}
\newcommand{\uludagic}{N/A}
\newcommand{\uludagec}{previous biliary duct surgery or ERCP; \newline $\geq$ ASA 3; \newline DM; \newline BMI $>$ 30}
\newcommand{\yildizic}{N/A}
\newcommand{\yildizec}{previous biliary duct surgery or ERCP; \newline prosthetic valves; \newline chronic hepatic disease; \newline immunosuppression}
\newcommand{\kutheic}{ASA 1 or ASA 2}
\newcommand{\kutheec}{prosthetic valves; \newline previous biliary duct surgery; \newline regular steroid use}
\newcommand{\kocic}{N/A}
\newcommand{\kocec}{prosthetic valves; \newline previous biliary duct surgery; \newline pre-op WBC $>$ 12.5; \newline chronic hepatic disease; \newline high risk of infection (undefinded)}
\newcommand{\mahaic}{N/A}
\newcommand{\mahaec}{prosthetic valves; \newline immunosuppression; \newline pregnant or lactating}
\newcommand{\tocchiic}{N/A}
\newcommand{\tocchiec}{previous biliary duct surgery; \newline prosthetic valves; \newline regular steroid use}
\newcommand{\higginsic}{N/A}
\newcommand{\higginsec}{previous biliary duct surgery; \newline prosthetic valves or joints; \newline high risk of infection (undefined)}
\newcommand{\mahmoudic}{N/A}
\newcommand{\mahmoudec}{DM; \newline regular steroid use; \newline previous biliary duct surgery}
\newcommand{\kumaric}{N/A}
\newcommand{\kumarec}{prosthetic valves or joints; \newline DM; \newline previous biliary duct surgery; \newline pregnant or lactating}
\newcommand{\absdiv}[1]{%
\par\addvspace{.5\baselineskip}% adjust to suit
\noindent\textbf{#1}\quad\ignorespaces
}
\begin{document}
\twocolumn[
\begin{@twocolumnfalse}
\author{Fake author}
\date{\today}
\title{Fake title\\
\large Fake subtitle}
\maketitle
\begin{abstract}
\absdiv{Introduction} Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
\absdiv{Methods} Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
\absdiv{Results} Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
\absdiv{Conclusion} Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
\end{abstract}
\vspace{1cm}
\end{@twocolumnfalse}
]
\section*{Introduction}
\lipsum
\section*{Methods}
\lipsum
\subsection*{Types of studies}
\lipsum
\subsection*{Types of participants}
\lipsum
\subsection*{Types of interventions}
\lipsum
\subsection*{Outcome measures}
\lipsum
\subsection*{Search strategy}
\lipsum
\subsection*{Data collection}
\lipsum
\subsection*{Assessment of risk of bias}
\lipsum
\subsection*{Data analysis}
\lipsum
\section*{Results}
\lipsum
\subsection*{Study Selection}
\lipsum
\subsection*{Study Characteristics}
\lipsum
\lipsum
\afterpage{
\begin{landscape}
\centering
\begin{table}
\begin{scriptsize}
{\renewcommand{\arraystretch}{1.3}%
\begin{tabular}{l c c m{5cm} m{2cm} m{3cm} m{8cm}}
\textbf{Study} & \textbf{P} & \textbf{C} & \textbf{Prophylaxis} & \textbf{Control} & \textbf{Inclusion criteria} & \textbf{Exclusion criteria} \\
\hline
Passos 2016 & 50 & 50 & Cefazolin 2g IV during anesthesia & None & \passosic & \passosec \\\hline
Darzi 2016 & 182 & 247 & Cefazolin 1g IV 30min prior to anesthesia; every 6 hours after anesthesia
& NaCl & \darziic & \darziec \\\hline
Matsui 2014 & 504 & 505 & Cefazolin 1g IV at skin incision; at 12 and 24 hours post-incision & None & \matsuiic & \matsuiec \\\hline
Ruangsin 2015 & 150 & 149 & Cefazolin 1g IV during anesthesia & NaCl & \ruangsinic & \ruangsinec \\\hline
Turk 2013 & 278 & 269 & Cefazolin 1g IV during anesthesia & NaCl & \turkic & \turkec \\\hline
Naqvi 2013 & 177 & 173 & Cefuroxime 1.5g IV during anesthesia & None & \naqviic & \naqviec \\\hline
Hassan 2012 & 100 & 100 & Ceftazidime IV during anesthesia & NaCl & \hassanic & \hassanec \\\hline
Sharma 2010 & 50 & 50 & Ceftriaxone 1g IV during anesthesia & NaCl & \sharmaic & \sharmaic \\\hline
Uludag 2009 & 68 & 76 & Cefazolin 1g IV during anesthesia & NaCl & \uludagic & \uludagec \\\hline
Yildiz 2009 & 105 & 103 & Cefazolin 1g IV during anesthesia & NaCl & \yildizic & \yildizec \\\hline
Kuthe 2006 & 40 & 53 & Cefuroxime 1.5g IV during anesthesia & NaCl & \kutheic & \kutheec \\\hline
Koc 2003 & 49 & 43 & Cefotaxime 2g IV during anesthesia & NaCl & \kocic & \kocec \\\hline
Mahatharadol 2001 & 50 & 50 & Cefazolin 1g IV during anesthesia & None & \mahaic & \mahaec \\\hline
Tocchi 2000 & 44 & 40 & Cefotaxime 2g IV 30 min before anesthesia; 24 hours after surgery & NaCl & \tocchiic & \tocchiec \\\hline
Higgins 1999 & 277 & 135 & Cefotetan 1g IV or Cefazolin 1g IV during anesthesia & NaCl & \higginsic & \higginsec \\\hline
Mahmoud 2005 & 29 & 35 & Cefotaxime 2g IV 30 min before anesthesia & NaCl & \mahmoudic & \mahmoudec \\\hline
Kumar 2012 & 50 & 48 & Ceftriaxone 1g IV 30 min before anesthesia & NaCl & \kumaric & \kumarec \\
\hline
\end{tabular}
}% ends arraystretch
\end{scriptsize}
\caption{Study characteristics}
\label{table:studychar}
\end{table}
\end{landscape}
} % ends afterpage
\subsection*{Risk of Bias}
\lipsum
\end{document}
下面是一些虚拟代码，演示了它如何按预期工作如果摘要缩短
\documentclass[10pt,twocolumn]{article}
\usepackage[margin=0.7in]{geometry}
\usepackage[english]{babel}
\usepackage{pdflscape}
\usepackage{afterpage}
\usepackage{lipsum}
\usepackage{array,multirow}
\newcommand{\passosic}{low surgical risk with uncomplicated cholecysitis}
\newcommand{\passosec}{renal or hepatic impairment; \newline immunosuppression}
\newcommand{\darziic}{1st time abdominal surgery}
\newcommand{\darziec}{immunocompromise; \newline DM; \newline previous biliary duct surgery or ERCP within 1 week of surgery}
\newcommand{\matsuiic}{N/A}
\newcommand{\matsuiec}{regular insulin or steroid use; \newline on HD; \newline severe comorbidities such as Child C liver cirrhosis; \newline receiving chemotherapy}
\newcommand{\ruangsinic}{N/A}
\newcommand{\ruangsinec}{previous biliary tract surgery; \newline prosthetic heart valve; \newline concomitant infection; \newline single port procedure}
\newcommand{\turkic}{ASA 1 or ASA 2}
\newcommand{\turkec}{$\geq$ ASA 3; \newline previous biliary tract surgery; \newline pre-op WBC $>$ 12.5}
\newcommand{\naqviic}{N/A}
\newcommand{\naqviec}{high risk of infection (i.e. DM, steroid use, immunosuppression)}
\newcommand{\hassanic}{ASA 1 or ASA 2}
\newcommand{\hassanec}{prosthetic valves/joints; \newline DM; \newline high risk of infection (undefined); \newline pregnant or lactating}
\newcommand{\sharmaic}{N/A}
\newcommand{\sharmaec}{immunosuppression; \newline cardiac disorders requiring prophylactic antibiotics}
\newcommand{\uludagic}{N/A}
\newcommand{\uludagec}{previous biliary duct surgery or ERCP; \newline $\geq$ ASA 3; \newline DM; \newline BMI $>$ 30}
\newcommand{\yildizic}{N/A}
\newcommand{\yildizec}{previous biliary duct surgery or ERCP; \newline prosthetic valves; \newline chronic hepatic disease; \newline immunosuppression}
\newcommand{\kutheic}{ASA 1 or ASA 2}
\newcommand{\kutheec}{prosthetic valves; \newline previous biliary duct surgery; \newline regular steroid use}
\newcommand{\kocic}{N/A}
\newcommand{\kocec}{prosthetic valves; \newline previous biliary duct surgery; \newline pre-op WBC $>$ 12.5; \newline chronic hepatic disease; \newline high risk of infection (undefinded)}
\newcommand{\mahaic}{N/A}
\newcommand{\mahaec}{prosthetic valves; \newline immunosuppression; \newline pregnant or lactating}
\newcommand{\tocchiic}{N/A}
\newcommand{\tocchiec}{previous biliary duct surgery; \newline prosthetic valves; \newline regular steroid use}
\newcommand{\higginsic}{N/A}
\newcommand{\higginsec}{previous biliary duct surgery; \newline prosthetic valves or joints; \newline high risk of infection (undefined)}
\newcommand{\mahmoudic}{N/A}
\newcommand{\mahmoudec}{DM; \newline regular steroid use; \newline previous biliary duct surgery}
\newcommand{\kumaric}{N/A}
\newcommand{\kumarec}{prosthetic valves or joints; \newline DM; \newline previous biliary duct surgery; \newline pregnant or lactating}
\newcommand{\absdiv}[1]{%
\par\addvspace{.5\baselineskip}% adjust to suit
\noindent\textbf{#1}\quad\ignorespaces
}
\begin{document}
\twocolumn[
\begin{@twocolumnfalse}
\author{Fake author}
\date{\today}
\title{Fake title\\
\large Fake subtitle}
\maketitle
\begin{abstract}
\absdiv{Introduction}
\absdiv{Methods}
\absdiv{Results}
\absdiv{Conclusion}
\end{abstract}
\vspace{1cm}
\end{@twocolumnfalse}
]
\section*{Introduction}
\lipsum
\section*{Methods}
\lipsum
\subsection*{Types of studies}
\lipsum
\subsection*{Types of participants}
\lipsum
\subsection*{Types of interventions}
\lipsum
\subsection*{Outcome measures}
\lipsum
\subsection*{Search strategy}
\lipsum
\subsection*{Data collection}
\lipsum
\subsection*{Assessment of risk of bias}
\lipsum
\subsection*{Data analysis}
\lipsum
\section*{Results}
\lipsum
\subsection*{Study Selection}
\lipsum
\subsection*{Study Characteristics}
\lipsum
\lipsum
\afterpage{
\begin{landscape}
\centering
\begin{table}
\begin{scriptsize}
{\renewcommand{\arraystretch}{1.3}%
\begin{tabular}{l c c m{5cm} m{2cm} m{3cm} m{8cm}}
\textbf{Study} & \textbf{P} & \textbf{C} & \textbf{Prophylaxis} & \textbf{Control} & \textbf{Inclusion criteria} & \textbf{Exclusion criteria} \\
\hline
Passos 2016 & 50 & 50 & Cefazolin 2g IV during anesthesia & None & \passosic & \passosec \\\hline
Darzi 2016 & 182 & 247 & Cefazolin 1g IV 30min prior to anesthesia; every 6 hours after anesthesia
& NaCl & \darziic & \darziec \\\hline
Matsui 2014 & 504 & 505 & Cefazolin 1g IV at skin incision; at 12 and 24 hours post-incision & None & \matsuiic & \matsuiec \\\hline
Ruangsin 2015 & 150 & 149 & Cefazolin 1g IV during anesthesia & NaCl & \ruangsinic & \ruangsinec \\\hline
Turk 2013 & 278 & 269 & Cefazolin 1g IV during anesthesia & NaCl & \turkic & \turkec \\\hline
Naqvi 2013 & 177 & 173 & Cefuroxime 1.5g IV during anesthesia & None & \naqviic & \naqviec \\\hline
Hassan 2012 & 100 & 100 & Ceftazidime IV during anesthesia & NaCl & \hassanic & \hassanec \\\hline
Sharma 2010 & 50 & 50 & Ceftriaxone 1g IV during anesthesia & NaCl & \sharmaic & \sharmaic \\\hline
Uludag 2009 & 68 & 76 & Cefazolin 1g IV during anesthesia & NaCl & \uludagic & \uludagec \\\hline
Yildiz 2009 & 105 & 103 & Cefazolin 1g IV during anesthesia & NaCl & \yildizic & \yildizec \\\hline
Kuthe 2006 & 40 & 53 & Cefuroxime 1.5g IV during anesthesia & NaCl & \kutheic & \kutheec \\\hline
Koc 2003 & 49 & 43 & Cefotaxime 2g IV during anesthesia & NaCl & \kocic & \kocec \\\hline
Mahatharadol 2001 & 50 & 50 & Cefazolin 1g IV during anesthesia & None & \mahaic & \mahaec \\\hline
Tocchi 2000 & 44 & 40 & Cefotaxime 2g IV 30 min before anesthesia; 24 hours after surgery & NaCl & \tocchiic & \tocchiec \\\hline
Higgins 1999 & 277 & 135 & Cefotetan 1g IV or Cefazolin 1g IV during anesthesia & NaCl & \higginsic & \higginsec \\\hline
Mahmoud 2005 & 29 & 35 & Cefotaxime 2g IV 30 min before anesthesia & NaCl & \mahmoudic & \mahmoudec \\\hline
Kumar 2012 & 50 & 48 & Ceftriaxone 1g IV 30 min before anesthesia & NaCl & \kumaric & \kumarec \\
\hline
\end{tabular}
}% ends arraystretch
\end{scriptsize}
\caption{Study characteristics}
\label{table:studychar}
\end{table}
\end{landscape}
} % ends afterpage
\subsection*{Risk of Bias}
\lipsum
\end{document}
有人可以建议一个修复方法，使其能够按照预期使用更长的摘要吗？
顺便说一句，如果您有任何建议可以让我的表格更易读或更美观，请告诉我。我是表格方面的新手。
答案1
如果必须使用，\afterpage{..那么解决方案就是将其简单地向下移动到源文件，以便一些文本开始流入右侧列，并且该\afterpage机制会在插入横向页面之前填充该列。
然而，更好的解决方案是不使用landcape或\afterpage（我的两个包被删除的双重好处:-)，而是使用浮动sidewaystable
\documentclass[10pt,twocolumn]{article}
\usepackage[margin=0.7in]{geometry}
\usepackage[english]{babel}
\usepackage{rotating}
\usepackage{afterpage}
\usepackage{lipsum}
\usepackage{array,multirow}
\newcommand{\passosic}{low surgical risk with uncomplicated cholecysitis}
\newcommand{\passosec}{renal or hepatic impairment; \newline immunosuppression}
\newcommand{\darziic}{1st time abdominal surgery}
\newcommand{\darziec}{immunocompromise; \newline DM; \newline previous biliary duct surgery or ERCP within 1 week of surgery}
\newcommand{\matsuiic}{N/A}
\newcommand{\matsuiec}{regular insulin or steroid use; \newline on HD; \newline severe comorbidities such as Child C liver cirrhosis; \newline receiving chemotherapy}
\newcommand{\ruangsinic}{N/A}
\newcommand{\ruangsinec}{previous biliary tract surgery; \newline prosthetic heart valve; \newline concomitant infection; \newline single port procedure}
\newcommand{\turkic}{ASA 1 or ASA 2}
\newcommand{\turkec}{$\geq$ ASA 3; \newline previous biliary tract surgery; \newline pre-op WBC $>$ 12.5}
\newcommand{\naqviic}{N/A}
\newcommand{\naqviec}{high risk of infection (i.e. DM, steroid use, immunosuppression)}
\newcommand{\hassanic}{ASA 1 or ASA 2}
\newcommand{\hassanec}{prosthetic valves/joints; \newline DM; \newline high risk of infection (undefined); \newline pregnant or lactating}
\newcommand{\sharmaic}{N/A}
\newcommand{\sharmaec}{immunosuppression; \newline cardiac disorders requiring prophylactic antibiotics}
\newcommand{\uludagic}{N/A}
\newcommand{\uludagec}{previous biliary duct surgery or ERCP; \newline $\geq$ ASA 3; \newline DM; \newline BMI $>$ 30}
\newcommand{\yildizic}{N/A}
\newcommand{\yildizec}{previous biliary duct surgery or ERCP; \newline prosthetic valves; \newline chronic hepatic disease; \newline immunosuppression}
\newcommand{\kutheic}{ASA 1 or ASA 2}
\newcommand{\kutheec}{prosthetic valves; \newline previous biliary duct surgery; \newline regular steroid use}
\newcommand{\kocic}{N/A}
\newcommand{\kocec}{prosthetic valves; \newline previous biliary duct surgery; \newline pre-op WBC $>$ 12.5; \newline chronic hepatic disease; \newline high risk of infection (undefinded)}
\newcommand{\mahaic}{N/A}
\newcommand{\mahaec}{prosthetic valves; \newline immunosuppression; \newline pregnant or lactating}
\newcommand{\tocchiic}{N/A}
\newcommand{\tocchiec}{previous biliary duct surgery; \newline prosthetic valves; \newline regular steroid use}
\newcommand{\higginsic}{N/A}
\newcommand{\higginsec}{previous biliary duct surgery; \newline prosthetic valves or joints; \newline high risk of infection (undefined)}
\newcommand{\mahmoudic}{N/A}
\newcommand{\mahmoudec}{DM; \newline regular steroid use; \newline previous biliary duct surgery}
\newcommand{\kumaric}{N/A}
\newcommand{\kumarec}{prosthetic valves or joints; \newline DM; \newline previous biliary duct surgery; \newline pregnant or lactating}
\begin{document}
\section*{Introduction}
\lipsum
\section*{Methods}
\lipsum
\subsection*{Types of studies}
\lipsum
\subsection*{Types of participants}
\lipsum
\subsection*{Types of interventions}
\lipsum
\subsection*{Outcome measures}
\lipsum
\subsection*{Search strategy}
\lipsum
\subsection*{Data collection}
\lipsum
\subsection*{Assessment of risk of bias}
\lipsum
\subsection*{Data analysis}
\lipsum
\section*{Results}
\lipsum
\subsection*{Study Selection}
\lipsum
\subsection*{Study Characteristics}
\lipsum[1]
\begin{sidewaystable*}
\scriptsize
\renewcommand{\arraystretch}{1.3}%
\begin{tabular}{l c c m{5cm} m{2cm} m{3cm} m{8cm}}
\textbf{Study} & \textbf{P} & \textbf{C} & \textbf{Prophylaxis} & \textbf{Control} & \textbf{Inclusion criteria} & \textbf{Exclusion criteria} \\
\hline
Passos 2016 & 50 & 50 & Cefazolin 2g IV during anesthesia & None & \passosic & \passosec \\\hline
Darzi 2016 & 182 & 247 & Cefazolin 1g IV 30min prior to anesthesia; every 6 hours after anesthesia
& NaCl & \darziic & \darziec \\\hline
Matsui 2014 & 504 & 505 & Cefazolin 1g IV at skin incision; at 12 and 24 hours post-incision & None & \matsuiic & \matsuiec \\\hline
Ruangsin 2015 & 150 & 149 & Cefazolin 1g IV during anesthesia & NaCl & \ruangsinic & \ruangsinec \\\hline
Turk 2013 & 278 & 269 & Cefazolin 1g IV during anesthesia & NaCl & \turkic & \turkec \\\hline
Naqvi 2013 & 177 & 173 & Cefuroxime 1.5g IV during anesthesia & None & \naqviic & \naqviec \\\hline
Hassan 2012 & 100 & 100 & Ceftazidime IV during anesthesia & NaCl & \hassanic & \hassanec \\\hline
Sharma 2010 & 50 & 50 & Ceftriaxone 1g IV during anesthesia & NaCl & \sharmaic & \sharmaic \\\hline
Uludag 2009 & 68 & 76 & Cefazolin 1g IV during anesthesia & NaCl & \uludagic & \uludagec \\\hline
Yildiz 2009 & 105 & 103 & Cefazolin 1g IV during anesthesia & NaCl & \yildizic & \yildizec \\\hline
Kuthe 2006 & 40 & 53 & Cefuroxime 1.5g IV during anesthesia & NaCl & \kutheic & \kutheec \\\hline
Koc 2003 & 49 & 43 & Cefotaxime 2g IV during anesthesia & NaCl & \kocic & \kocec \\\hline
Mahatharadol 2001 & 50 & 50 & Cefazolin 1g IV during anesthesia & None & \mahaic & \mahaec \\\hline
Tocchi 2000 & 44 & 40 & Cefotaxime 2g IV 30 min before anesthesia; 24 hours after surgery & NaCl & \tocchiic & \tocchiec \\\hline
Higgins 1999 & 277 & 135 & Cefotetan 1g IV or Cefazolin 1g IV during anesthesia & NaCl & \higginsic & \higginsec \\\hline
Mahmoud 2005 & 29 & 35 & Cefotaxime 2g IV 30 min before anesthesia & NaCl & \mahmoudic & \mahmoudec \\\hline
Kumar 2012 & 50 & 48 & Ceftriaxone 1g IV 30 min before anesthesia & NaCl & \kumaric & \kumarec \\
\hline
\end{tabular}
\caption{Study characteristics}
\label{table:studychar}
\end{sidewaystable*}
\subsection*{Risk of Bias}
\lipsum
\end{document}