Herrera de Hurtado, L. and Salinas de Romero, R.E. 2017. Alterations of respiratory and cardiac function in smokers. Revista Científica Crea Ciencia. 11, 1-2 (Dec. 2017), 60–66. DOI:https://doi.org/10.5377/creaciencia.v11i1-2.6041.