Pulmonary circulation in health and disease / (proceedings of the Symposium on the Pulmonary Circulation, held at the Ettore Majorana Center for Scientific Culture, Erice, Sicily, Italy, July 16-21, 1979) ; edited by G. Cumming and G. Bonsignore. - Cumming, Gordon; Bonsignore, G. (Plenum, 1980)