
Validation of the Yale Physical Activity Survey in Chronic Obstructive Pulmonary Disease Patients
Keywords: فعالیت موتور; Chronic obstructive pulmonary disease (COPD); Validation studies; Epidemiology; Motor activity; QuestionnairesEnfermedad pulmonar obstructiva crónica (EPOC); Estudios de validación; Epidemiología; Actividad motora; Cuestionarios