Fasting and postprandial serum gastrin levels were determined by radioimm-unoassay in each 30 cases of normal gastroduodenal mucosa (NGDM), chronic active gastroduodenitis (CAGDI), and active duodenal ulcer (ADU).

• 活检证实的正常胃、十二指肠粘膜(NGDM),慢性活动性胃、十二指肠炎(CAGDI)和活动性十二指肠溃疡(ADU)各30例。