AdvertisementTrio Wins Nobel Prize In Physiology Or Medicine For Work On Cells And OxygenOctober 07, 2019Scott NeumanBill ChappellfacebookEmailThe winners of the 2019 Nobel Prize in physiology or medicine are Gregg Semenza of the U.S., Peter Ratcliffe of Britain and William Kaelin of the U.S. They're seen here on a screen during a news conference at the Karolinska Institute in Stockholm. (AFP via Getty Images)