Ivermectin prophylaxis used for COVID-19: a citywide, prospective, observational study of 223,128 subjects using propensity score matching - Kerr, Lucy; Cadegiani, Flavio Adsuara; Baldi, Fernando; Lôbo, Raysildo Barbosa; Assagra, Washington Luiz Olivato; Proença, Fernando Carlos; Kory, Pierre; Hibberd, Jennifer A.; Chamie-Quintero, Juan J. (Cureus, 2022)