Database

Period

Search strategy used

The Cochrane Hepato‐Biliary Group Controlled Trials Register

The date will be given when the search is performed.

drain* AND (((liver OR hepat*) AND (segmentectomy OR resection)) OR hepatectomy)

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

Latest issue.

#1 MeSH descriptor Drainage explode all trees in MeSH products
#2 drain* in All Fields in all products
#3 (#1 OR #2)
#4 MeSH descriptor Liver explode all trees in MeSH products
#5 MeSH descriptor Liver Neoplasms explode all trees in MeSH products
#6 MeSH descriptor Liver Diseases explode all trees in MeSH products
#7 MeSH descriptor Adenoma, Liver Cell explode all trees in MeSH products
#8 MeSH descriptor Carcinoma, Hepatocellular explode all trees in MeSH products
#9 liver or hepat* in All Fields in all products
#10 (#4 OR #5 OR #6 OR #7 OR #8 OR #9)
#11segmentectomy or resection in All Fields in all products
#12 (#10 AND #11)
#13 MeSH descriptor Hepatectomy explode all trees in MeSH products
#14 hepatectomy in All Fields in all products
#15(#12 OR #13 OR #14)
#16(#3 AND #15)

MEDLINE

January 1950 to the date when the search will be performed.

((("Liver"[MeSH] OR "Liver Neoplasms"[MeSH] OR "Liver Diseases"[MeSH] OR "Adenoma, Liver Cell"[MeSH] OR "Carcinoma, Hepatocellular"[MeSH] OR liver OR hepat*) AND (segmentectomy OR resection)) OR hepatectomy OR "Hepatectomy"[MeSH]) AND ("Drainage"[MeSH] OR drain*) AND ((randomized controlled trial [pt] OR controlled clinical trial [pt] OR randomized controlled trials [mh] OR random allocation [mh] OR double‐blind method [mh] OR single‐blind method [mh] OR clinical trial [pt] OR clinical trials [mh] OR ("clinical trial" [tw]) OR ((singl* [tw] OR doubl* [tw] OR trebl* [tw] OR tripl* [tw]) AND (mask* [tw] OR blind* [tw])) OR (placebos [mh] OR placebo* [tw] OR random* [tw] OR research design [mh:noexp]) NOT (animals [mh] NOT human [mh]))

EMBASE

January 1974 to the date when the search will be performed.

1. drain$ OR SURGICAL‐DRAINAGE.DE.
2. liver OR hepatic OR hepato
3. segmentectomy OR resection
4. 2 AND 3
5. hepatectomy OR LIVER‐RESECTION.DE.
6. 4 OR 5
7. 1 AND 6
8.RANDOMIZED‐CONTROLLED‐TRIAL#.DE. OR RANDOMIZATION#.W..DE. OR CONTROLLED‐STUDY#.DE. OR MULTICENTER‐STUDY#.DE. OR PHASE‐3‐CLINICAL‐TRIAL#.DE. OR PHASE‐4‐CLINICAL‐TRIAL#.DE. OR DOUBLE‐BLIND‐PROCEDURE#.DE. OR SINGLE‐BLIND‐PROCEDURE#.DE.
9. RANDOM$ OR CROSSOVER$ OR CROSS‐OVER OR CROSS ADJ OVER OR FACTORIAL$ OR PLACEBO$ OR VOLUNTEER$
10. (SINGLE OR DOUBLE OR TREBLE OR TRIPLE) NEAR (BLIND OR MASK)
11. 8 OR 9 OR 10
12. 11 AND HUMAN=YES
13. 7 AND 12

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

1970 to the date when the search will be performed.

#1 TS=(liver OR hepat*)
#2 TS=(segmentectomy OR resection)
#3 #2 AND #1
#4 TS=(hepatectomy)
#5 #4 OR #3
#6 TS=(drain*)
#7 #6 AND #5
#8 TS=(random* OR blind*OR placebo* OR meta‐analysis)
#9 #8 AND #7