ok, so we were going through some old boxes in our shed & we found my old medical/surgical textbooks from college. I have a 2012 PDR. That's a Physician's Desk Reference book that weighs close to 10lbs. & lists all the prescription medicines that were being used that year. Ironic that Gilead did not have Remdesivir listed in the PDR in 2012. According to Wikipedia, it was first available in 2009.