N-terminal-pro-brain natriuretic peptides as a haemodynamic marker in idiopathic pulmonary arterial hypertension - Souza, Rogerio; Bogossian, Humberto Bassit; Humbert, M.; Jardim, C.; Rabelo, R.; Amato, Marcelo Britto Passos; Carvalho, Carlos Roberto Ribeiro de (European Respiratory Journal, 2005)