“Mammal Autoexamen As an Early Detection Method of Breast Cancer in the Female Population from Tulcan City”. Horizontes de Enfermería, no. 7 (December 29, 2018): 33–44. Accessed December 18, 2025. https://www.revistasdigitalesupeceduec35.biteca.online/index.php/enfermeria/article/view/127.