This happens a lot in medicine due to believing observational data rather than randomized control trials. An entire book was written on Medical Reversal by the person who's now head of CBER at FDA: https://www.amazon.com/Ending-Medical-Reversal-Improving-Out...
Get the best books from Hacker News each week
Join 4,500+ subscribers and get the best books mentioned on Hacker News every Thursday.