As per a recent study published in which website, anti-malarial drug Hydroxychloroquine is not effective for the Coronavirus treatment?

As per a recent study published in which website, anti-malarial drug H

1.	As per a recent study published in which website, anti-malarial drug Hydroxychloroquine is not effective for the Coronavirus treatment?
A.	NetDoctor
B.	WeightWatchers
C.	Drugs.com
D.	MedRxiv
Answer» E.