Recommendations for head and neck surgical procedures during the COVID-19 pandemic Marco A.V. Kulcsar; Fabio L.M. Montenegro; André B.O. Santos; Marcos R. Tavares; Sergio S. Arap; Luiz P. Kowalski;

Delayed diagnosis and increased mortality risk: Assessing the effects of the COVID-19 pandemic on breast cancer recurrence Lindson Mühlmann; Franklin Fernandes Pimentel; Daniel Guimarães Tiezzi; Hélio Humberto Angotti Carrara; Jurandyr Moreira de Andrade; Francisco José Candido dos Reis;

Impact of COVID-19 pandemic on the surgical treatment of gastric cancer Amanda Juliani Arneiro; Marcus Fernando Kodama Pertille Ramos; Marina Alessandra Pereira; André Roncon Dias; Bruno Zilberstein; Ulysses Ribeiro; Sergio Carlos Nahas;