"Natural" history of pulmonary artery pressure in a series of 131 COPD patients : Pulmonary Circulation VII, Prague, June 27-30, 1999. Abstract - Weitzenblum, E; Faller, M; Kessler, R; Chaouat, A; Castera-Ehrhart, M; Ducoloné, A; Oswald, M; Casel, S (International Symposium Pulmonary Circulation ..., 1999)