【作者(必填)】 Li G, Ma D, Zhang Y, Zheng W, Wang P.
【文题(必填)】 Coffee consumption and risk of colorectal cancer: a meta-analysis of observational studies.【年份(必填)】 Public Health Nutr. 2013 Feb;16(2):346-57. doi: 10.1017/S1368980012002601. Epub 2012 Jun 14.
【全文链接或数据库名称(选填)】http://www.ncbi.nlm.nih.gov/pubmed/22694939