1ONKOS Oncology Unit, Guadalajara, Jalisco, Mexico
2Research Unit in Clinical Epidemiology, Specialties Hospital of the Western Medical Center, Medical Unit of High Specialty, Mexican Institute of Social Security, Guadalajara, Jalisco, Monaco
*Corresponding Author:
Alejandro González-Ojeda, Research Unit in Clinical Epidemiology, Western Medical Center, Avenida Belisario Domínguez 1000, Colonia Independencia, CP 44340, Guadalajara, Jalisco, Monaco, Tel: 523338485410, Fax: +5233384854213 Email: