1. Division of Endocrinology, Hospital Nacional Guillermo Almenara Irigoyen, Lima, Perú
2. Division of Obstetrics and Gynecology, Clínica Vesalio, Lima, Perú
3. Division of Neonatology, Hospital Belén de Trujillo, Department of Pediatrics of Universidad Privada Antenor Orrego, Trujillo, Perú
4. Division of Neumology, Hospital Regional Docente de Trujillo, Department of Medicine of Universidad Nacional de Trujillo, Perú