“39. HIV TESTING FREQUENCY AND ASSOCIATED FACTORS AMONG MALE PEOPLE WHO INJIECT DRUGS OF QUANG NINH PROVINCES IN 2021”, YHCĐ, vol. 66, no. CĐ3-HNKH Ký Sinh Trùng VN lần thứ 51, Mar. 2025, doi: 10.52163/yhc.v66iCĐ3.2160.