TAMMIVAARA-HILTY , RITVA. “Central Haemodynamics During Hypoxia, Hyperoxia and Hypercapnoea in Severe Chronic Obstructive Lung Disease”. Upsala Journal of Medical Sciences 78, no. 2 (June 1, 1973): 116-132. Accessed April 1, 2026. https://ujms.net/index.php/ujms/article/view/7438.