https://qcostarica.com/hydroxychloroquine-the-drug-costa-rica-uses-successfully-to-fight-covid-19/?fbclid=IwAR1moXsV-t3JOWFCem7SgUk59VVuAuwj4CvDdByv_ut1Vo2A3E5Ln0wWOek
Hydroxychloroquine: The Drug Costa Rica Uses Successfully To Fight Covid-19 (using it since march 18)