Resumen de artículo Buenas noches. He escrito el resumen de un artículo y no sé si está bien. ¿Pueden ayudarme? Good night. I have wirtten the abstract of an article and I don't know if it is good. Can you help me? ABSTRACT Objective. The fundamental objective of this document is to show the relation between COPD, chronic obstructive pulmonary disease, and its main risk factor, tobacco. Furthermore, a supporting objective of this bibliographic review is to mention how to prevent this illness. Method. This study is a literature review. We have searched the references, mainly, in the following data bases: PUBMED, Scielo, Lilacs, Scopus and Dialnet between 13th November 2015 and 11th December 2015. To select some articles, we have used inclusion ways as the subject of the study and the publication dates. Results. The population which is more associated with COPD is found between 40-80 years old. Most of them are smokers. Within the group of smokers, the prevalence of consumption of tobacco is higher in men than in women. This disease cause a 27% of deaths associated with tobacco in Spain. Conclusion. There is a general lack of knowledge about COPD, although it is lower respect to previous years. This ignorance, with the premature age to start smoking, main risk factor, imply a high prevalence of this disease in a older age. Therefore, the main prevention measures are healthy habits and stop to smoke, among others. THANKS!! :)