Earlier quoted context omitted.
Do you like this source better? https://synapse.patsnap.com/blog/what-are-the-types-of-pharm... ?
It’s somebody’s random blog instead of three published, peer reviewed articles. I’m not sure what you expect to hear
If you like, here is a paper from the Vanderbilt law review: https://scholarship.law.vanderbilt.edu/cgi/viewcontent.cgi?a...