1. Faculty of Dentistry, Dentistry School, San Martin de Porres University, Chiclayo 14012, Peru
2. Faculty of Human Medicine, Human Medicine School, San Martín de Porres University, Chiclayo 14012, Peru
3. Faculty of Stomatology, Stomatology School, Nacional University of Trujillo, Trujillo 13001, Peru
4. Faculty of Health Sciences, Stomatology School, Toribio Rodríguez of Mendoza National University of Amazonas, Chachapoyas 01001, Peru
5. Faculty of Health Sciences, Continental University, Lima 15046, Peru
6. Faculty of Dentistry, Dentistry School, Catholic University of Santa Maria, Arequipa 04013, Peru
7. Faculty of Medicine, Medicine School, Catholic University of Santa Maria, Arequipa 04013, Peru
8. Postgraduate School, Catholic University of Santa Maria, Arequipa 04013, Peru
9. Faculty of Dentistry, Néstor Cáceres Velásquez Andean University, Juliaca 21104, Peru