Restrepo, Alexandra, and Nilton E Montoya. 2015. “Tobacco Use Among School Enrolled and No Enrolled Adolescent in Medellin, Colombia. A Population Survey”. Revista De La Facultad De Ciencias Médicas De Córdoba 72 (4): 270-84. https://doi.org/10.31053/1853.0605.v72.n4.13835.