Huong le T, Vu NT, Dung NN, Xuan le TT, Giang KB, Hai PT, Huyen DT, Khue LN, Lam NT, Minh HV, Nga PT. Cigarette Smoking among Adolescents aged 13-15 in Viet Nam and Correlates of Current Cigarette Smoking: Results from GYTS 2014 Data. Asian Pac J Cancer Prev. 2016; 17(S1):17-23.