You can't. It's not in the Bible. However, the Mormons attribute to their prophet the words, "Woe unto you, ye doctors; woe unto you, ye lawyers; woe unto you, ye scribes, Pharisees, and hypocrites!" The closest quote in the Bible may be found in Luke 11:46. Later in the passage a woe is also pronounced upon doctors of the law, though no woe exists (to my knowledge) upon medical doctors.
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them