TAMMIVAARA-HILTY , RITVA. Gas Exchange in Severe Chronic Obstructive Lung Disease in Relation to Inspired Oxygen and Increased Carbon Dioxide Fraction, Physical Exercise and Body Posture. Upsala Journal of Medical Sciences, [S. l.], v. 78, n. 2, p. 98–115, 1973. DOI: 10.3109/03009737309178615. Disponível em: https://ujms.net/index.php/ujms/article/view/7437. Acesso em: 12 nov. 2026.