APA-referens (7:e uppl.)

Nicholls, A., Kiran, A., Javaid, M., Hart, D., Spector, T., Carr, A., & Arden, N. (2012). Change in body mass index during middle age affects risk of total knee arthoplasty due to osteoarthritis: A 19-year prospective study of 1003 women.

Chicago-referens (17:e uppl.)

Nicholls, A., A. Kiran, M. Javaid, D. Hart, T. Spector, A. Carr, och N. Arden. Change in Body Mass Index During Middle Age Affects Risk of Total Knee Arthoplasty Due to Osteoarthritis: A 19-year Prospective Study of 1003 Women. 2012.

MLA-referens (9:e uppl.)

Nicholls, A., et al. Change in Body Mass Index During Middle Age Affects Risk of Total Knee Arthoplasty Due to Osteoarthritis: A 19-year Prospective Study of 1003 Women. 2012.