共 50 条
- [4] COST OF UPPER GI ENDOSCOPY IN PEPTIC-ULCER DISEASE GASTROENTEROLOGIE CLINIQUE ET BIOLOGIQUE, 1992, 16 (11): : 837 - 841
- [6] COSTS OF UPPER GI ENDOSCOPY IN PEPTIC-ULCER DISEASE REVISITED GASTROENTEROLOGIE CLINIQUE ET BIOLOGIQUE, 1993, 17 (6-7): : 506 - 506