title: The vitalograph--a study of its role in pulmonary function testing in childhood.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D013147:Spirometry / Q000295:instrumentation* / Q000592:standards