Pulmonary function testing.
D002983:Clinical Competence / Q000592:standards; D003406:Credentialing; D004503:Education, Medical, Graduate; D006801:Humans; D015272:Pulmonary Medicine / Q000193:education* / Q000592:standards; D012129:Respiratory Function Tests / Q000592:standards; D012955:Societies, Medical; D014481:United States