Chronic thromboembolic pulmonary hypertension: Initial experience of patients undergoing pulmonary thromboendarterectomy Rui Plácido; Tatiana Guimarães; David Jenkins; Nuno Cortez-Dias; Sara Couto Pereira; Paula Campos; Ana Mineiro; Nuno Lousada; Susana R. Martins; Susana Moreira; Ana Rocha Dias; Catarina Lopes Resende; Rita Vieira; Fausto J. Pinto;