Long TK, Son PX, Giang KB, Hai PT, Huyen DT, Khue LN, Nga PT, Lam NT, Minh HV, Huong le TT. Exposure to Tobacco Advertising and Promotion among School Children Aged 13-15 in Vietnam - an Overview from GYTS 2014. Asian Pac J Cancer Prev. 2016; 17(S1):49-53.