You often hear someone falling back on the 'but studies prove it' justification/defence/explanation. Beware! Not all studies are created equal. Ask to look at the paper if in doubt. MD (Prof Baker) gives a good breakdown of one such flawed MS study here: https://multiple-sclerosis-research.org/2024/10/is-the-study-data-or-the-study-a-problem-no-effect-of-anti-cd20-on-ppms/