Evaluation of the COVID-19 Infection Rate in the Perioperative Period of Elective Surgeries of the Hand and Microsurgery - Bertelli, Vinícius Thiago Conde; Rezende, Luis Guilherme Rosifini Alves; Shimaoka, Filipe Jun; Mandarano Filho, Luiz Garcia; Mazzer, Nilton; Barbieri, Claúdio Henrique (Hand, 2021)