11.   Last month, they found out Zach had developed another tumor.

12.   New animal tests are also in the works, like mice that are being genetically engineered to develop tumors more quickly.

13.   My laptop has been X-rayed so often it is developing a tumor.

14.   Previous studies found that one in four of these fish are expected to develop liver tumors.

15.   Rats fed high doses of PhIP develop tumors in their mammary glands, studies have shown.

16.   That meant that he would develop tumors along his nerves, some of which could be malignant.

17.   The decision was based on experiments that showed that some rats that were fed large quantities over their life spans developed bladder tumors.

18.   The mice developed cancerous tumors, and the war between the medical establishment and the cigarette industry was on.

19.   The rats were genetically designed to develop tumors on an accelerated basis, and several of the tumors developed in their Zymbal gland -- which has no human counterpart.

20.   The Whitehead scientists predicted that the mice with low levels of the methylation enzyme would develop more tumors.