NEW YORK (Reuters Health) - A new study bolsters the case that daily aspirin may help protect against cancer, although the effect seems weaker than previously thought. And the final chapter on the popular but controversial drug has yet to be written, experts say, because like earlier research the new work has considerable limitations. "News about the cancer potential of aspirin use has been really encouraging lately," said Dr. Michael Thun of the American Cancer Society, who worked on the study. "Things are moving forward, but it is still a work in progress." Medical guidelines in the U.S. ... read more..