Primary thrombophilia in México. VI: lack of statistical association among the inherited thrombophilic conditions [in Spanish] - Ruiz-Argüelles, G J; González-Carrillo, M L; Estrada-Gómez, R; Valdés-Tapia, P; Parra-Ortega, I; Porras-Juárez, A (Gac Med Mex, 2007)