Physicians may strive to practice evidence-based medicine (EBM), but doing so consistently is easier said than done, according to a commentary by Terry Brenneman, M.D., in Physicians Practice. The three key reasons physicians fail to practice EBM, according to Brenneman, include the difficulty of keeping up with new research, personal opinions that differ from guidelines and the lack of available evidence for many clinical questions. In choosing which vaccine to use to prevent some diseases, for example, doctors are often left to rely on their "subjective take," he wrote. Post