Ventilatory Responses to Hypoxia and Hypercapnia in Stable Methadone Maintenance Treatment Patients
Keywords: حجم نزولی; chronic opioids; hypercapnic ventilatory response; hypoxic ventilatory response; respiratory rate; tidal volume; CAI; central apnea index; Dlco; diffusion capacity of the lung for carbon monoxide; Faco2; expired fractional concentration of carbon dioxide;