Database	Time span	Search strategy
The Cochrane Hepato‐Biliary Group Controlled Trials Register	June 2006.	'primary biliary cirrhosis' and 'cyclosporin A'
Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library	Issue 2, 2006.	#1 = LIVER CIRRHOSIS BILIARY: MESH #2 = primary and biliary and cirrhosis #3 = primary biliary cirrhosis #4 = pbc #5 = #1 or #2 or #3 or #4 #6 = CYCLOSPORIN A: MESH #7 = IMMUNOSUPPRESSIVE AGENTS: MESH #8 = cyclosporins #9 = #6 or #7 or #8 #10 = #5 and #9
MEDLINE	1966 to June 2006.	#1 = LIVER‐CIRRHOSIS‐BILIARY: MESH #2 = primary and biliary and cirrhosis #3 = primary biliary cirrhosis #4 = PBC #5 = #1 or #2 or #3 or #4 #6 = CYCLOSPORIN A: MESH #7 = IMMUNOSUPPRESSIVE AGENTS: MESH #8 = cyclosporin* #9 = immunosuppressive agent* #10 = #6 or #7 or #8 or #9 #11 = #5 and #10 #12 = random* or placebo* or blind* or meta‐analysis #13 = #11 and #12
EMBASE	1980 to June 2006.	#1 = PRIMARY‐BILIARY‐CIRRHOSIS: MESH #2 = BILIARY‐CIRRHOSIS: MESH #3 = primary and biliary and cirrhosis #4 = primary biliary cirrhosis #5 = PBC #6 = #1 or #2 or #3 or #4 or #5 #7 = CYCLOSPORIN A: MESH #8 = IMMUNOSUPPRESIVE AGENTS: MESH #9 = cyclosporin* #10 = immunosuppressive agent* #11 = #7 or #8 or #9 or #10 #12 = #6 and #11 #13 = random* or placebo* or blind* or meta‐analysis #14 = #12 and #13
Science Citation Index Expanded (http://portal.isiknowledge.com/portal.cgi?DestApp=WOS&Func=Frame)	1945 to June 2006.	#1 = TS=(primary biliary cirrhosis OR PBC) #2 = TS=(cyclosporine OR cyclosporin*) #3 = #2 AND #1 #4 = TS=(random* OR blind* OR placebo* OR meta‐analysis) #5 = #4 AND #3
LILACS	1982 to June 2006.	#1 = (primary and biliary and cirrhosis) or (primary biliary cirrhosis) #2 = primary biliary cirrhosis #3 = cyclosporin A #4 = (#1 OR #2) AND # 3
Chinese Biochemical CD Database	1979 to June 2006.	#1 = LIVER‐CIRRHOSIS‐BILIARY: MESH #2 = primary and biliary and cirrhosis #3 = primary biliary cirrhosis #4 = PBC #5 = #1 or #2 or #3 or #4 #6 = CYCLOSPORIN A: MESH #7 = IMMUNOSUPPRESSIVE AGENTS: MESH #8 = cyclosproin* #9 = immunosuppressive agent* #10 = #6 or #7 or #8 or #9 #11 = #5 and #10 #12 = random* or placebo* or blind* or meta‐analysis #13 = #11 and #12