Doctors grapple with best use of potent new cancer drugs

COPENHAGEN (Reuters) - Evelyn O’Flynn still has lung cancer. But after going straight on to a new immune system-boosting drug more than a year ago, rather than traditional hard-to-tolerate chemotherapy, she is feeling great. "It’s like a miracle," said the 72-year-old ex-smoker, who is about to become a great-grandmother.