
Octogenarian patients with chronic obstructive pulmonary disease: Characteristics and usefulness of prognostic indexes
Keywords: سالمندان; Chronic obstructive pulmonary disease; Octogenarian; Elderly; Phenotypes; Mortality; Prognostic; Enfermedad pulmonar obstructiva crónica; Octogenarios; Ancianos; Fenotipos; Mortalidad; Pronóstico;