1. Ahrens, H. (1971). Multivariate analysis. Krishnaiah Paruchuri R. (Ed.) New York: Academic Press Inc.
2. Aiken, L. S., & West, S. G. (1991). Multiple regression: testing and interpreting interactions. Newbury Park, CA: Sage Publications, Inc.
3. Cancer Facts & Figs. 2013. American Cancer Society: Atlanta, GA, 2013.
https://www.cancer.org/research/cancer-facts-statistics/all-cancer-facts-figures/cancer-facts-figures-2013.html
. Accessed on June 14, 2017.
4. Carroll, R. J., Midthune, D., Freedman, L. S., & Kipnis, V. (2006). Seemingly unrelated measurement error models, with application to nutritional epidemiology. Biometrics, 62(1), 75–84.
5. Chan, E. C. Y., Koh, P. K., Mal, M., Cheah, P. Y., Eu, K. W., Backshall, A., Cavill, R., Nicholson, J. K., & Keun, H. C. (2008). Metabolic profiling of human colorectal cancer using high-resolution magic angle spinning nuclear magnetic resonance (HR-MAS NMR) spectroscopy and gas chromatography mass spectrometry (GC/MS). Journal of Proteome Research, 8(1), 352–361.