Response to: 'Hydroxychloroquine ineffective for COVID-19 prophylaxis in lupus and rheumatoid arthritis' by Singer et al.
Manuel Francisco Ugarte-GilMaximilian Ferdinand KonigPeter KorstenFrancis BerenbaumAlfred Hyoungju KimJeffrey A SparksPublished in: Annals of the rheumatic diseases (2020)