(Q40775931)
Statements
1 reference
Patterns of endoscopy use in the United States (English)
1 reference
Lieberman DA
1 reference
De Garmo PL
1 reference
Fleischer DE
1 reference
Eisen GM
1 reference
Helfand M
1 reference
1 March 2000
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
Identifiers
1 reference