Gautret et al., Travel Medicine and Infectious Disease,
doi:10.1016/j.tmaid.2020.101663 (Peer Reviewed)
Clinical and microbiological effect of a combination of hydroxychloroquine and azithromycin in 80 COVID-19 patients with at least a six-day follow up: A pilot observational study
Pilot study suggesting improvement with HCQ+AZ and recommending further study. 80 patients with relatively mild cases, no control group, and no attempt to analyze confounding factors.
Gautret et al., 4/11/2020, peer-reviewed, 29 authors.