Cigarette price and other factors associated with brand choice and brand loyalty in Zambia: findings from the ITC Zambia Survey
Ramzi G Salloum, Fastone Goma, Grieve Chelwa, Xi Cheng, Richard Zulu, Susan C Kaai, Anne C K Quah, James F Thrasher, Geoffrey T Fong
Tobacco Control Jul 2015, 24 (Suppl 3) iii33-iii40; DOI: 10.1136/tobaccocontrol-2014-051878