[Medical expertise of flying personnel in chronic diseases of the gastrointestinal tract].
D000337:Aerospace Medicine / Q000331:legislation & jurisprudence*; D002908:Chronic Disease; D005762:Gastroenterology / Q000331:legislation & jurisprudence*; D041981:Gastrointestinal Tract; D006801:Humans; D013177:Sports
AVIATION MEDICINE/jurisprudence; GASTROENTEROLOGY/jurisprudence