Affiliation: | 1.Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile ;2.Department of Oral & Maxillofacial Surgery, Hospital Carlos Van Buren, San Ignacio 725, Valparaíso, Chile ;3.Department of Paediatrics, Obstetrics and Gynaecology and Preventive Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain ;4.Department of Paediatric Dentistry and Orthodontic, Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile ;5.Center for Research in Epidemiology, Economics and Oral Public Health (CIEESPO), Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile ;6.Department of Oral & Maxillofacial Surgery and Cochrane Associated Center, Faculty of Dentistry, Universidad de Chile, Santiago, Chile ;7.Department of Oral & Maxillofacial Surgery, Hospital Clínico San Borja-Arriarán, Santiago, Chile ;8.Center for Epidemiology and Surveillance of Oral Disease (CEVEO), Faculty of Dentistry, Universidad de Chile, Santiago, Chile ;9.Department of Oral & Maxillofacial Surgery, Faculty of Dentistry, Universidad de los Andes, Santiago, Chile ;10.Department of Oral & Maxillofacial Surgery, Clínica Universidad de Los Andes, Santiago, Chile ;11.Department of Oral & Maxillofacial Surgery, Clínica Santa María, Santiago, Chile ;12.Clinical Psychologist, Private Practice, Santiago, Chile ;13.Health Services Research Group, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain ;14.CIBER en Epidemiología y Salud Pública, CIBERESP, Madrid, Spain ;15.Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain ; |