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- [2] NONOPERATIVE TREATMENT FOR PERFORATED PEPTIC-ULCER NEW ENGLAND JOURNAL OF MEDICINE, 1989, 321 (15): : 1050 - 1050
- [10] NONOPERATIVE TREATMENT FOR PERFORATED PEPTIC-ULCER - REPLY NEW ENGLAND JOURNAL OF MEDICINE, 1989, 321 (15): : 1051 - 1051