TY - GEN AU - DeGerome,J H AU - Langdon,D E AU - Bauer,J O AU - Harlan,J R TI - Duodenoscopy in diagnosis of occult peptic ulcer disease SN - 0040-4470 PY - 1973///1115 KW - Duodenum KW - Endoscopy KW - Humans KW - Methods KW - Peptic Ulcer KW - diagnosis N1 - Publication Type: Journal Article ER -