Department of General Surgery;
Mexican Institute of Social Security;
HGZ 1 of Colima;
Colima;
Mexico;
Division of Social Sciences and Technology;
Center for Industrial Technical Education (CETI);
Guadalajara;
Mexico;
Division of Engineering and Sciences;
Technological Institute of Higher Studies of Monterrey (ITESM);
Monterrey;
Mexico;
Department of Physical Engineering;
University of Guanajuato;
Leon;
Mexico;
Department of Applied Sciences to Work;
University of Guanajuato;
Leon;
Mexico;
Breast Cancer; Sex Hormones; PROLACTIN; Postmenopausal Women;