1. White PD (1931) Heart disease, 1st edn. Macmillan, New York
2. Chronic cor pulmonale: report of an expert committee. Circulation 1963;27:594–615
3. Weitzenblum E, Chaouat A (2004) Pulmonary hypertension due to chronic hypoxia lung disease. In: Peacock A, Rubin LJ (eds) Pulmonary circulation, 2nd edn. Arnold, London, pp 374–386
4. Liebow AA (1958) Pulmonary emphysema with special reference to vascular changes. Am Rev Resp Dis 80:67–92
5. Junghanss W (1959) Das Lungenemphysem im postmortalen Angiogramm. Virchows Arch Pathol Anat 332:538