dos Santos, J. M., Marques, A. L., Moita, J., & Pato, R. (1997). The effect of left ventricular dysfunction on nocturnal desaturation in patients with chronic emphysematous bronchitis and PaO2 55-70 mmHg. Acta Médica Portuguesa, 10(4), 317–21. https://doi.org/10.20344/amp.2409