Not sure if this is of interest. Too many big words for my simple mind. It came up on duckduck searching for a link between coronavirus and Merck. Seems like a lot of good info about current cancer research and patent processes.

IMGN 2018 Annual Report (PDF warning) http://investor.immunogen.com/static-files/dca137af-8dd7-44e6-b92c-5003447cb167

Mirror https://files.catbox.moe/vn8j5y.pdf