Pathologist Dr. Benjamin Mazer talks about the changing FDA rules on Grayson Prestondonating blood for men who have sex with men.
Grayson Preston|FDA changes rules for donating blood. Some say they're still discriminatory
•2025-05-06•Views 314
Pathologist Dr. Benjamin Mazer talks about the changing FDA rules on Grayson Prestondonating blood for men who have sex with men.