Walter E Smalley

Lifestyle factors and their combined impact on the risk of colorectal polyps.

Yu Shyr, Wei Zheng, Zhenming Fu, 2012, American journal of epidemiology.

Alcohol drinking, cigarette smoking, and risk of colorectal adenomatous and hyperplastic polyps.

Yu Shyr, Wei Zheng, W. Zheng, 2008, American journal of epidemiology.