841; author reply 1841-2, May 2010. 29. Trasande, L., Liu, Y., Fryer, G., and Weitzman, M. "Effects of childhood obesity on hospital care and costs, 1999-2005," Health Aff., vol. 28, no. Supplement 1, pp. w751- w760, Jan. 2009. 30. Schwimmer, J. B., Burwinkle, T. M., and Varni, M. W. J. "Health-Related Quality of Life of Severely Obese Children and Adolescents," 2003. https://jamanetwork.com/ journals/jama/fullarticle/196343 31. Strauss, R. S. "Childhood Obesity and Self-Esteem," 2000. https://pubmed.ncbi.nlm. nih.gov/10617752/ 32. Viner, R. M. and Cole, T. J. "Adult socioeconomic, educational, social, and psycho- logical outcomes of childhood obesity: A national birth cohort study," Br. Med. J., vol. 330, no. 7504, pp. 1354-1357, 2005. 33. Johnson, D. Deterding, S., Kuhn, K. A., Staneva, A. Stoyanov, S., and Hides, L. "Gamification for health and wellbeing: A systematic review of the literature," Internet Interv., vol. 6, pp. 89-106, 2016. 34. Teixeira, P. J., Palmeira, A. L., and Vansteenkiste, M. "The role of self-determination theory and motivational interviewing in behavioral nutrition, physical activity, and health: an introduction to the IJBNPA special series," Int. J. Behav. Nutr. Phys. Act., vol. 9, no. 1, p. 17, 2012. 35. Calvo, R. A., and Peters, D. Positive Computing: Technology for Well-Being and Human Potential. The MIT Press, ISBN: 9780262325684, 2014. 36. Fogg, B. J. Persuasive Technology. Elsevier, pp. 1-253, 2003. 37. Almonani, E., Husain, W., San, O. Y., Almomani, A., and Al-Betar, M. "Mobile game approach to prevent childhood obesity using persuasive technology," 2014 Int. Conf. Comput. Inf. Sci. ICCOINS 2014-A Conf. World Eng. Sci. Technol. Congr. ESTCON 2014-Proc., no. June, 2014. 38. Wright, J. K. "Pacific Islands," Geogr. Rev., vol. 32, no. 3, p. 481, 2019. 39. Deterding, S., Dixon, D., Khaled, R., and Nacke, L. "From game design elements to gamefulness: Defining "gamification,"" Proc. 15th Int. Acad. MindTrek Conf. Envisioning Futur. Media Environ. MindTrek 2011, pp. 9-15, 2011. 40. Saile