[1] Univ Calif San Francisco, Ctr Tobacco Control Res & Educ, 530 Parnassus Ave,Suite 366, San Francisco, CA 94143 USA
[2] Univ Calif San Francisco, Dept Family Hlth Care Nursing, Nursing, 2 Koret Way,Rm 405J,UCSF Box 0606, San Francisco, CA 94143 USA
[3] Univ Calif San Francisco, Global Hlth Sci Program, Nursing, 2 Koret Way,Rm 405J,UCSF Box 0606, San Francisco, CA 94143 USA
[4] Hawassa Univ, Coll Med & Hlth Sci, Sch Nursing & Midwifery, POB 1560, Hawassa, Ethiopia
[5] Hawassa Univ, Coll Med & Hlth Sci, Sch Publ & Environm Hlth, POB 1560, Hawassa, Ethiopia
[6] Dept Physiol Nursing, 2 Koret Way,N611Q, San Francisco, CA 94143 USA
[7] Ctr Tobacco Control Res & Educ, 2 Koret Way,N611Q, San Francisco, CA 94143 USA
[8] Loma Linda Univ, Sch Nursing, West Hall,11262 Campus St, Loma Linda, CA 92354 USA