TI - USe of cigarettes and other tobacco products among students aged 13-15 years—worldwide, 1999-2005 PT - JOUR DP - 2006 TA - JAMA pages = {2840-2843}, VI - 295 IP - 24 AID - 10.1001/jama.295.24.2842 [doi] 4100 - http://dx.doi.org/10.1001/jama.295.24.2842 SO - JAMA June 28, 2006 295(24):2840