title: Methodological aspects of lung function studies.
abstract: With several variables, such as patient or subject, disease, surroundings, machine and personnel, it is a wonder that successful epidemiological studies using lung function parameters can be done at all.
mesh_terms: D002138:Calibration; D004813:Epidemiology; D006801:Humans; D012107:Research Design; D012129:Respiratory Function Tests / Q000295:instrumentation / Q000379:methods