Coffee and Gallstones. A study on the effect of coffee on gallstones (Journal of the American Medical Association, June 9, 1999) resulted (in small part) in the data showm below. The category Coffee means more than four cups of caffeinated coffee per day. The category No coffee means no caffeinated coffee. Draw a Venn diagram for the data.
Gallstone disease | No disease | |
No coffee | 385 | 14,068 |
Coffee | 91 | 4,806 |
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