1. Doctoral School of the University of Las Palmas de Gran Canaria (ULPGC), Las Palmas, Spain.
2. Hematology and Medical Oncology Department, Morales Meseguer University Hospital, Centro Regional de Hemodonacion, IMIB-Arrixaca, University of Murcia, Murcia, Spain.
3. Department of Community Nursing, Preventive Medicine, Public Health and History of Science, Faculty of Health Sciences, University of Alicante, Alicante, Spain.
4. Department of Gynecologic Oncology, Insular Materno-Infantil University Hospital, Las Palmas, Spain.