Roussel and Raoult (2020) assessed the correlation between public positions taken by 98 doctors towards hydroxychloroquine and payments received from the Gilead Sciences company. The analysis presented has two major problems, the first of which can probably be fixed retrospectively, but the second of which seems irredeemable.
Keywords: Aggregation; COVID-19; Spearman's rank correlation; bias; blinding; hydroxychloroquine.
© 2020 The Author(s).