TY - JOUR T1 - Pulmonology in the 21st century and the mark left by COVID-19 JO - Jornal Brasileiro de Pneumologia A1 - Holanda, Marcelo Alcantara SN - 1806-3713 UL - 10.36416/1806-3756/e20210499 VL - 47 Y1 - 2021 PB - Brasil ER -