show evidence of understanding the social determinants of health in relation to analysing and reflecting on this topic. you need to use a case study on the health topics of physical activity and chronic disease risk factors as an example to highlight the application of mobile or other health technologies in these areas. Required journals : 1. Wilkinson, R & Marmot, M (eds) 2003,Social Determinants of Health: the Solid Facts (2nd edn), WHO, Copenhagen 2. Tong, H. L. and Laranjo, L. (2018). The use of social features in mobile health interventions to promote physical activity: a systematic review. Digital Medicine, 1(1):1-10. DOI 10.1038/s41746-018-0051-3 3. Tong, H. L., Coiera, E. and Laranjo, L. (2018). Using a Mobile Social Networking App to Promote Physical Activity: A Qualitative Study of Users’ Perspectives. Journal of Medical Internet Research, 20(12):e11439. doi: 10.2196/11439 and 2 key academic journal articles that succinctly focus on the principles of health promotion and on the social determinants of health. and 4 academic journal articles or academic/government reports of their choice that illustrates a case study on the health topics of physical activity and chronic disease risk factors and the application of mobile or other health technology in these areas. so those 9 plus 6 other references.