Myasthenia gravis and COVID-19: clinical characteristics and outcomes - Camelo Filho, Antonio Edvan; Silva, André Macedo Serafim da; Estephan, Eduardo de Paula; Zambon, Antonio Alberto; Mendonca, Rodrigo Holondo; Souza, Paulo Victor Sgobbi de; Pinto, Wladimir Bocca Vieira de Rezende; Oliveira, Acary Souza Bulle; Dangoni-Filho, Iron; Zanoteli, Edmar (Frontiers in neurology, 2020)