<xs:attribute name="lang"/>  | 
                           
| 
                                     < citation-info xmlns = "http://www.elsevier.com/xml/ani/ani" >  | 
                              
| 
                                     < citation-type code = "ar" />  | 
                              
| 
                                     Hepatectomy  | 
                              
| 
                                     </ author-keyword>  | 
                              
| 
                                     Laparoscopy  | 
                              
| 
                                     </ author-keyword>  | 
                              
| 
                                     Liver cancer  | 
                              
| 
                                     </ author-keyword>  | 
                              
| 
                                     </ author-keywords>  | 
                              
| 
                                     </ citation-info>  |