A multi centre randomized open label trial of chloroquine for the treatment of adults with SARS-CoV-2 infection in Vietnam by Kestelyn, E, Dung, NTP, Lam Minh, Y, Hung, LM, Quan, NM, Dung, NT, Minh, NNQ, Xuan, TC, Phong, NT, Ninh Thi Thanh, V, Donovan, J, Tu, TNH, Nhat, LTH, Truong, NT, Man, DNH, Thao, HP, Ngoc, NM, Lam, VT, Phat, HH, Phuong, PM, Geskus, RB, Ha, VTN, Quang, NN, Tran Tinh, H, Tan, LV, Thwaites, GE, Day, JN, Chau, NVV, OUCRU COVID-19 Research Group