TAMMIVAARA-HILTY R. 1973. Central Haemodynamics during Hypoxia, Hyperoxia and Hypercapnoea in Severe Chronic Obstructive Lung Disease. Upsala Journal of Medical Sciences. 78, 2 (Jun. 1973), 116-132. DOI:https://doi.org/10.3109/03009737309178616.