PT - JOURNAL ARTICLE ED - , TI - Is chloroquine or hydroxychloroquine useful in treating people with COVID-19, or in preventing infection in people who have been exposed to the virus? DP - 2021 Apr 01 TA - Neurosciences Journal PG - 220--220 VI - 26 IP - 2 4099 - http://nsj.org.sa/content/26/2/220.short 4100 - http://nsj.org.sa/content/26/2/220.full SO - Neurosciences (Riyadh)2021 Apr 01; 26