title: [Blood gas analysis in 570 healthy adults of Lhasa].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000531:Altitude; D001784:Blood Gas Analysis; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged