Reply to 'Low-dose hydroxychloroquine therapy and lower mortality in hospitalized patients with COVID-19: association does not mean causality'., Dauby, N, Catteau Lucy, Hautekiet Joris, Montourcy Marion, Bottieau E, Goetghebeur E, and Van Beckhoven Dominique , Int J Antimicrob Agents, 2020 Dec 13, (2020)