Data base	Search strategy	Date of search
The Cochrane Hepato‐Biliary Group Controlled Trials Register	#1: 'hepatitis' and 'chenodeoxycholic' #2: 'hepatitis' and 'cholic' #3: 'hepatitis' and 'deoxycholic' #4: 'hepatitis' and 'glycochenodeoxycholic' #5: 'hepatitis' and 'glycocholic' #6: 'hepatitis' and 'glycodeoxycholic' #7: 'hepatitis' and 'glycolithocholic' #8: 'hepatitis' and 'hyodeoxycholic' #9: 'hepatitis' and 'lithocholic' #10: 'hepatitis' and 'taurochenodeoxycholic' #11: 'hepatitis' and 'taurocholic' #12: 'hepatitis' and 'taurodehydrocholic' #13: 'hepatitis' and 'taurodeoxycholic' #14: 'hepatitis' and 'tauroglycocholic' #15: 'hepatitis' and 'taurolithocholic' #16: 'hepatitis' and 'tauroselcholic' #17: 'hepatitis' and 'tauroursocholic' #18: 'hepatitis' and 'tauroursodeoxycholic' #19: 'hepatitis' and 'ursocholic' #20: 'hepatitis' and 'ursodeoxycholic'		July 2007.
The Cochrane Controlled Trials Register	#1: HEPATITIS*:ME #2: HEPATITIS #3: BILE ACID *:ME #4: CHENODEOXYCHOLIC or CHOLIC or DEOXYCHOLIC or GLYCOCHENODEOXYCHOLIC or GLYCOCHOLIC or GLYCODEOXYCHOLIC or GLYCOLITHOCHOLIC or HYODEOXYCHOLIC or LITHOCHOLIC or TAUROCHENODEOXYCHOLIC or TAUROCHOLIC or TAURODEHYDROCHOLIC or TAURODEOXYCHOLIC or TAUROGLYCOCHOLIC or TAUROLITHOCHOLIC or TAUROSELCHOLIC or TAUROURSOCHOLIC or TAUROURSODEOXYCHOLIC or URSOCHOLIC or URSODEOXYCHOLIC #5: #1 or #2 #6: #3 or #4 #7: #5 and #6		July 2007.
MEDLINE	#1: HEPATITIS *:ME #2: HEPATITIS #3: BILE ACID *:ME #4: CHENODEOXYCHOLIC or CHOLIC or DEOXYCHOLIC or GLYCOCHENODEOXYCHOLIC or GLYCOCHOLIC or GLYCODEOXYCHOLIC or GLYCOLITHOCHOLIC or HYODEOXYCHOLIC or LITHOCHOLIC or TAUROCHENODEOXYCHOLIC or TAUROCHOLIC or TAURODEHYDROCHOLIC or TAURODEOXYCHOLIC or TAUROGLYCOCHOLIC or TAUROLITHOCHOLIC or TAUROSELCHOLIC or TAUROURSOCHOLIC or TAUROURSODEOXYCHOLIC or URSOCHOLIC or URSODEOXYCHOLIC #5: #1 or #2 #6: #3 or #4 #7: #5 and #6 #8: RANDOMIZED‐CONTROLLED‐TRIAL *:ME #9: RANDOM* #10: #8 or #9 #11: #7 and #10		July 2007.
EMBASE	#1: HEPATITIS *:ME #2: HEPATITIS #3: BILE ACID *:ME #4: CHENODEOXYCHOLIC or CHOLIC or DEOXYCHOLIC or GLYCOCHENODEOXYCHOLIC or GLYCOCHOLIC or GLYCODEOXYCHOLIC or GLYCOLITHOCHOLIC or HYODEOXYCHOLIC or LITHOCHOLIC or TAUROCHENODEOXYCHOLIC or TAUROCHOLIC or TAURODEHYDROCHOLIC or TAURODEOXYCHOLIC or TAUROGLYCOCHOLIC or TAUROLITHOCHOLIC or TAUROSELCHOLIC or TAUROURSOCHOLIC or TAUROURSODEOXYCHOLIC or URSOCHOLIC or URSODEOXYCHOLIC #5: #1 or #2 #6: #3 or #4 #7: #5 and #6 #8: RANDOMIZED‐CONTROLLED‐TRIAL *:ME #9: RANDOM* #10: #8 or #9 #11: #7 and #10		July 2007.
The Chinese Biomedical Database	#1: HEPATITIS *:ME #2: HEPATITIS #3: BILE ACID *:ME #4: CHENODEOXYCHOLIC or CHOLIC or DEOXYCHOLIC or GLYCOCHENODEOXYCHOLIC or GLYCOCHOLIC or GLYCODEOXYCHOLIC or GLYCOLITHOCHOLIC or HYODEOXYCHOLIC or LITHOCHOLIC or TAUROCHENODEOXYCHOLIC or TAUROCHOLIC or TAURODEHYDROCHOLIC or TAURODEOXYCHOLIC or TAUROGLYCOCHOLIC or TAUROLITHOCHOLIC or TAUROSELCHOLIC or TAUROURSOCHOLIC or TAUROURSODEOXYCHOLIC or URSOCHOLIC or URSODEOXYCHOLIC #5: #1 or #2 #6: #3 or #4 #7: #5 and #6 #8: RANDOMIZED‐CONTROLLED‐TRIAL *:ME #9: RANDOM* #10: #8 or #9 #11: #7 and #10		July 2007.
Science Citation Index Expanded	#1: HEPATITIS *:ME #2: HEPATITIS #3: BILE ACID *:ME #4: CHENODEOXYCHOLIC or CHOLIC or DEOXYCHOLIC or GLYCOCHENODEOXYCHOLIC or GLYCOCHOLIC or GLYCODEOXYCHOLIC or GLYCOLITHOCHOLIC or HYODEOXYCHOLIC or LITHOCHOLIC or TAUROCHENODEOXYCHOLIC or TAUROCHOLIC or TAURODEHYDROCHOLIC or TAURODEOXYCHOLIC or TAUROGLYCOCHOLIC or TAUROLITHOCHOLIC or TAUROSELCHOLIC or TAUROURSOCHOLIC or TAUROURSODEOXYCHOLIC or URSOCHOLIC or URSODEOXYCHOLIC #5: #1 or #2 #6: #3 or #4 #7: #5 and #6 #8: RANDOMIZED‐CONTROLLED‐TRIAL *:ME #9: RANDOM* #10: #8 or #9 #11: #7 and #10		July 2007.