Why you can't always trust big pharma's version of "medical research", literally 9 times out of ten it is not true and the US pharma industry today ranks as the third leading cause of death in America today.
Medicine is older than the patent medicine industry yet without a patent idustyr would not give a cure for cancer a sexcond glance and this is provable: look at the Salvestrol story.
The medical system is the third-leading cause of death in the United States. (Ref: Starfield B (July 2000). "Is US health really the best in the world?". JAMA 284 (4): 483–5. doi:10.1001/jama.284.4.483. PMID 10904513).