Cite
Aspirin use, body mass index, physical activity, plasma C-peptide, and colon cancer risk in US health professionals.
MLA
Zhang, Xuehong, et al. “Aspirin Use, Body Mass Index, Physical Activity, Plasma C-Peptide, and Colon Cancer Risk in US Health Professionals.” American Journal of Epidemiology, vol. 174, no. 4, Aug. 2011, pp. 459–67. EBSCOhost, https://doi.org/10.1093/aje/kwr115.
APA
Zhang, X., Smith-Warner, S. A., Chan, A. T., Wu, K., Spiegelman, D., Fuchs, C. S., Willett, W. C., & Giovannucci, E. L. (2011). Aspirin use, body mass index, physical activity, plasma C-peptide, and colon cancer risk in US health professionals. American Journal of Epidemiology, 174(4), 459–467. https://doi.org/10.1093/aje/kwr115
Chicago
Zhang, Xuehong, Stephanie A Smith-Warner, Andrew T Chan, Kana Wu, Donna Spiegelman, Charles S Fuchs, Walter C Willett, and Edward L Giovannucci. 2011. “Aspirin Use, Body Mass Index, Physical Activity, Plasma C-Peptide, and Colon Cancer Risk in US Health Professionals.” American Journal of Epidemiology 174 (4): 459–67. doi:10.1093/aje/kwr115.