TY - JOUR T1 - Is chloroquine or hydroxychloroquine useful in treating people with COVID-19, or in preventing infection in people who have been exposed to the virus? JF - Neurosciences Journal JO - Neurosciences (Riyadh) SP - 220 LP - 220 VL - 26 IS - 2 A2 - , Y1 - 2021/04/01 UR - http://nsj.org.sa/content/26/2/220.abstract N2 - ER -