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Respiratory Therapy|February 9, 1985
Definitive criteria for prescribing home oxygen systemsT L PettyThe American Journal of Medicine|July 29, 1988
Circadian variations in chronic asthma and chronic obstructive pulmonary diseaseT L PettyRespiratory Care Clinics of North America|October 14, 1998
Definitions, causes, course, and prognosis of chronic obstructive pulmonary diseaseT L PettyThe American Journal of Medicine|December 20, 1985
Future trends in the management of asthma and chronic obstructive pulmonary diseaseT L PettyPageof 13