title: Radioimmunoassay for serum gastrin in Singapore Chinese.
mesh_terms: D000328:Adult; D002681:China / Q000208:ethnology; D004381:Duodenal Ulcer / Q000097:blood / Q000453:epidemiology; D005260:Female; D005755:Gastrins / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011863:Radioimmunoassay; D012846:Singapore; D013276:Stomach Ulcer / Q000097:blood / Q000453:epidemiology
chemical_list: D005755:Gastrins