[Radioimmunoassay of secretin].
D000328:Adult; D000368:Aged; D006801:Humans; D008875:Middle Aged; D011863:Radioimmunoassay / Q000379:methods*; D011933:Reagent Kits, Diagnostic; D012633:Secretin / Q000097:blood*
D011933:Reagent Kits, Diagnostic; D012633:Secretin