[Opiates and gastric bezoars].
D001630:Bezoars / Q000139:chemically induced*; D006801:Humans; D008297:Male; D008614:Meperidine / Q000009:adverse effects; D008875:Middle Aged; D013270:Stomach
D008614:Meperidine
Opiáceos y bezoar gástrico.