Efficacy and Safety of Fixed Combination of Hydroxychloroquine with Azithromycin Versus Hydroxychloroquine and Placebo in Patients with Mild COVID-19: Randomized, double blind, Placebo controlled trial
Roy-García et al., medRxiv, doi:10.1101/2022.04.06.22273531
https://c19early.org/roygarcia.html