publicaciones seleccionadas artículo académico Joint effects of intensity and duration of cigarette smoking on the risk of head and neck cancer: A bivariate spline model approach. Oral Oncology. 94:47-57. 2019 Smoking habits and the risk of non-fatal acute myocardial infarction in Costa Rica. European Journal of Cardiovascular Prevention & Rehabilitation. 18:467-474. 2011