1. Graduate School, Universidad Nacional Mayor de San Marcos, Lima 15001, Peru
2. Academic Department of Nursing, Faculty of Medicine, Universidad Nacional Mayor de San Marcos, Lima 15001, Peru
3. Puesto de Salud Villa Virgen I-2, Cuzco 08720, Peru
4. Faculty of Health Science, Universidad María Auxiliadora, Lima 15408, Peru
5. Research Department, Universidad María Auxiliadora, Lima 15408, Peru