Factors associated with retention in Quitline counseling for smoking cessation among HIV-positive smokers receiving care at HIV outpatient clinics in Vietnam. - Nguyen NT; Nguyen T; Vu GV; Cleland CM; Pham Y; Truong N; Kapur R; Alvarez GG; Phan PT; Armstrong-Hough M; Shelley D (PloS one, 2024)