Myelosuppression Due to the Use of Azathioprine and COVID Infection and Severe Acute Colitis in a Patient With Ulcerative Colitis: Case Report - Yamamoto, Lucy Junka Junka [UNESP]; Vizioli, Ednir de Oliveira; Craveiro, Marcela Maria Silvino; Herrerias, Giedre; Oliveira, Ellen Cristina Souza; Castelhano, Natalia Salvador; Baima, Julio Pinheiro; Saad-Hossne, Rogerio; Sassaki, Ligia (Lippincott Williams & Wilkins, 2023)