@misc{misc3b9bbe14,
title   = {Challenging the concept of adding more drugs in pulmonary arterial hypertension [Editorial]},
author = {Fernandes, Caio J. C. dos Santos and Humbert, Marc and Souza, Rogerio},
year = {2017},
doi = {10.1183/13993003.01527-2017},
journal   = {European respiratory journal}
}