Jacob Maria, Silva Ricardo, Gaio Rita, Duarte Raquel
Pulmonology Department, Centro Hospitalar Universitário de São João, Porto, Portugal.
Mathematics Department, Faculty of Sciences of the University of Porto, Porto, Portugal.
Pulmonology. 2020 Jul-Aug;26(4):249-252. doi: 10.1016/j.pulmoe.2019.08.005. Epub 2019 Oct 28.