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Cochrane Database of Systematic Reviews Protocol - Intervention

Cholecystectomy versus no cholecystectomy in patients with silent gall stones

This is not the most recent version

Table 1. Search Strategy

Database

Period of search

Search strategy

The Cochrane Hepato‐Biliary Group Controlled Trials Register

The date when the search is performed.

(cholecystolithiasis OR cholelithiasis) AND operation*

Cochrane Central Register of Controlled Trials in The Cochrane Library (CENTRAL)

Latest Issue.

#1 CHOLELITHIASIS explode all trees (MeSH)
#2 (cholecystolithiasis or cholelithiasis)
#3 (#1 or #2)
#4 operation*
#5 (#3 and #4)

MEDLINE

1950 to the date when the search is performed.

#1 explode "Cholelithiasis"/ all subheadings
#2 cholecystolithiasis or cholelithiasis
#3 #1 or #2
#4 operation*
#5 #3 and #4
#6 random* or placebo* or blind* or meta‐analysis
#7 #5 and #6

EMBASE

1980 to the date when the search is performed.

#1 explode "cholelithiasis"/ all subheadings
#2 cholecystolithiasis or cholelithiasis
#3 #1 or #2
#4 operation*
#5 #3 and #4
#6 random* or placebo* or blind* or meta‐analysis
#7 #5 and #6

Science Citation Index Expanded (http://portal.isiknowledge.com/portal.cgi?DestApp=WOS&Func=Frame)

1945 to the date when the search is performed.

#1 TS=(cholecystolithiasis or cholelithiasis)
#2 TS=(operation*)
#3 #1 AND #2
#4 TS=(random* or placebo* or blind* or meta‐analysis)
#5 #3 AND #4

Figures and Tables -
Table 1. Search Strategy