[7 years of experience with the double contrast method].
D002400:Cathartics / Q000494:pharmacology*; D006801:Humans; D007422:Intestines / Q000000981:diagnostic imaging*; D011859:Radiography; D013634:Tannins / Q000494:pharmacology*
D002400:Cathartics; D013634:Tannins
CATHARTICS/pharmacology; INTESTINES/radiography; TANNINS/pharmacology