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. 2010 Sep 8;2010(9):CD002907. doi: 10.1002/14651858.CD002907.pub2
Database Time span Search strategy
The Cochrane Hepato‐Biliary Group Controlled Trials Register June 2010 (antibiotic* OR antibacteri*) AND (bleed* OR hemorr* or haemorr*) AND cirrho*
Cochrane Central Register of Controlled 
 Trials (CENTRAL) in The Cochrane Library Issue 2, 2010 #1 MeSH Descriptor antibiotic‐prophylaxis explode all trees in MeSH products 
 #2 antibiotic* in All Fields in all products 
 #3 antibacteri* NEAR prophyl* in All Fields in all products 
 #4 (#1 OR #2 OR #3) 
 #5 MeSH descriptor Gastrointestinal Hemorrhage explode all trees in MeSH products 
 #6 bleed* in All Fields in all products 
 #7 haemorr* in All Fields in all products 
 #8 hemorr* in All Fields in all products 
 #9 (#5 OR #6 OR #7 OR #8) 
 #10 MeSH Descriptor Liver Cirrhosis explode all tress in MeSH products 
 #11 cirrho* in All Fields in all products 
 #12 (#10 OR #11) 
 #13 (#4 AND #9 AND #12)
MEDLINE (Ovid SP) 1950 to June 2010 #1 explode antibiotic‐prophylaxis /All subheadings 
 #2 antibiotic* prophyl* 
 #3 antibiotic* pre 
 *#4 #1 or #2 or #3 
 #5 explode liver‐cirrhosis /All subheadings 
 #6 liver cirrho* 
 #7 hepatic cirrho* 
 #8 liver fibro* 
 #9 #5 or #6 or #7 or #8 
 #10 explode gastrointestinal‐hemorrhage /All subheadings 
 #11 gastr* hemorrhage 
 #12 gastr* haemorrhage 
 #13 gastr* bleeding 
 #14 #10 or #11 or #12 or #13 
 #15 random* or blind* or placebo* or meta‐analysis 
 #16 #4 and #9 and #14 and #15
EMBASE (Ovid SP) 1980 to June 2010 #1 explode “antibiotic‐prophylaxis”/all subheadings 
 #2 antibiotic* 
 #3 antibacteri* prophy* 
 #4 #1 or #2 or #3 
 #5 explode “gastrointestinal‐hemorrhage”/all subheadings 
 #6 hemorr* 
 #7 haemorr* 
 #8 bleed* 
 #9 #5 or #6 or #7 or #8 
 #10 explode “liver‐cirrhosis”/all subheadings 
 #11 cirrho* 
 #12 #10 or #11 
 #13 #4 and #9 and #12 
 #14 random* or blind* or placebo* or meta‐analysis 
 #13 #13 and #14
Science Citation Index EXPANDED 
 (http://apps.isiknowledge.com) 1945 to June 2010 #1 TS=(antibiotic* OR antibacteri* prophyl*) 
 #2 TS=(bleed* or hemorr* or haemorr*) 
 #3 TS=(cirrho*) 
 #4 #3 AND #2 AND #1 
 #5 TS=(random* or blind* or placebo* or meta‐analysis) 
 #6 #5 AND #4