[Radioimmunoassay of secretin].
D004381:Duodenal Ulcer / Q000097:blood*; D006801:Humans; D011863:Radioimmunoassay; D012633:Secretin / Q000097:blood*; D013276:Stomach Ulcer / Q000097:blood*; D015043:Zollinger-Ellison Syndrome / Q000097:blood
D012633:Secretin
Radioinmunoensayo de secretina.