7. Ngo, S.T., Steyn, F.J. and McCombe, P.A. (2014). Gender differences in autoimmune disease.
8. Krolewski, A.S. et al. (1987). Epidemiologic approach to the etiology of type 1 diabetes mellitus and its complications.
9. Bach, J.-F. (2002). The effect of infections on susceptibility to autoimmune and allergic diseases.
10. Uramoto, K.M. et al. (1999) Trends in the incidence and mortality of systemic lupus erythematosus, 1950–1992.
11. Alonso, A. and Hernan, M.A. (2008). Temporal trends in the incidence of multiple sclerosis: A systematic review.
12. Werner, S. et al. (2002). The incidence of atopic dermatitis in school entrants is associated with individual lifestyle factors but not with local environmental factors in Hannover, Germany.
1. Bairlein, F. (2002). How to get fat: nutritional mechanisms of seasonal fat accumulation in migratory songbirds.
3. Silventoinen, K.
4. Troiano, R.P.
5. Prentice, A.M. and Jebb, S.A. (1995). Obesity in Britain: Gluttony or sloth?
6. Westerterp, K.R. and Speakman, J.R. (2008). Physical activity energy expenditure has not declined since the 1980s and matches energy expenditures of wild mammals.
7. World Health Organisation (2014). Global Health Observatory Data — Overweight and Obesity. Available at: http://www.who.int/gho/ncd/risk_factors/overweight/en/.
8. Speliotes, E.K.
9. Marshall, J.K.
10. Gwee, K.-A. (2005). Irritable bowel syndrome in developing countries — a disorder of civilization or colonization?
11. Collins, S.M. (2014). A role for the gut microbiota in IBS.
12. Jeffery, I.B.
13. Backhed, F.
14. Ley, R.E.
15. Turnbaugh, P.J.
16. Centers for Disease Control (2014). Obesity Prevalence Maps. Available at: http://www.cdc.gov/obesity/data/prevalence-maps.html.
17. Gallos, L.K. et al. (2012). Collective behavior in the spatial spreading of obesity.
18. Christakis, N.A. and Fowler, J.H. (2007). The spread of obesity in a large social network over 32 years.
19. Dhurandhar, N.V.
20. Atkinson, R.L.