title: Air force challenged on sickle trait policy.
mesh_terms: D000328:Adult; D000337:Aerospace Medicine; D000531:Altitude; D000755:Anemia, Sickle Cell; D006801:Humans; D007603:Jurisprudence; D008297:Male; D008887:Military Medicine; D012306:Risk; D012805:Sickle Cell Trait