Mass screening for colorectal cancer by testing for occult blood under a restricted diet and using a questionnaire

Fujita, M., Nakano, Y., & Ohta, J. (1986). Mass screening for colorectal cancer by testing for occult blood under a restricted diet and using a questionnaire. Journal of the Japan Society of Colo-Proctology, 39(2), 187–192. https://doi.org/10.3862/jcoloproctology.39.187