The role of cardiopulmonary exercise test in the differential diagnosis of dyspnea in patient with primary pulmonary arterial hypertension. Research, Society and Development, [S. l.], v. 12, n. 6, p. e5812641833, 2023. DOI: 10.33448/rsd-v12i6.41833. Disponível em: https://rsdjournal.org/rsd/article/view/41833. Acesso em: 6 dec. 2025.