Many U.S. cancer doctors say they are good at managing their patients' pain, but most failed to choose the right treatment options in a test and say that figuring out the level of pain patients have is still a major barrier to care, a survey said. The findings, published in the Journal of Clinical Oncology, came from a follow-up to a survey that found a lack of good pain management among U.S. oncologists in 1990 and show that more work needs to be done to educate doctors about pain, researchers said.