1. Epidemiology of periodontal disease in children and adolescents;Jenkins;Periodontol 2000,2001
2. Gingival indices: State of Art;Rebelo,2011
3. Department of Health, The Government of Hong Kong, Hong Kong special administrative region, China. Oral health survey 2011. Available at: https://www.toothclub.gov.hk/en/en_pdf/Oral_Health_Survey_2011/Oral_Health_Survey_2011_WCAG_20141112_(EN_Full).pdf. (Accessed July 31st 2020).
4. IASO International Obesity TaskForce, Obesity in children and young people: a crisis in public health;Lobstein;Obes. Rev.,2004
5. Diagnosis of obesity and use of obesity biomarkers in science and clinical medicine;Nimptsch;Metabolism,2019