Update Alert: Should Clinicians Use Chloroquine or Hydroxychloroquine Alone or in Combination With Azithromycin for the Prophylaxis or Treatment of COVID-19? Living Practice Points From the American College of Physicians. - Qaseem A; Yost J; Etxeandia-Ikobaltzeta I; Miller MC; Abraham GM; Obley AJ; Forciea MA; Jokela JA; Humphrey LL (Annals of internal medicine, 2020)