[RIA of serum secretin in gastrointestinal diseases (author's transl)].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005767:Gastrointestinal Diseases / Q000097:blood*; D006801:Humans; D008875:Middle Aged; D011863:Radioimmunoassay; D012633:Secretin / Q000097:blood*
D012633:Secretin