linical Classification of Pulmonary Hypertension

erald Simonneau, MD,* Nazzareno Galiè, MD,† Lewis J. Rubin, MD,‡ David Langleben, MD,§ erner Seeger, MD, Guido Domenighetti, MD,¶ Simon Gibbs, MD,# Didier Lebrec, MD,** udolf Speich, MD,†† Maurice Beghetti, MD,‡‡ Stuart Rich, MD,§§ Alfred Fishman, MD aris and Clichy, France; Bologna, Italy; San Diego, California; Montreal, Canada; Giessen, Germany; Locarno, urich, and Geneva, Switzerland; London, United Kingdom; Chicago, Illinois; and Philadelphia, Pennsylvania