50 years ago, urea showed promise as a sickle-cell treatment
Excerpt from the December 19, 1970 issue of Science News

Keith Chambers/Scooter Project/Wikimedia Commons (CC BY-SA 3.0)
Keith Chambers/Scooter Project/Wikimedia Commons (CC BY-SA 3.0)
Excerpt from the December 19, 1970 issue of Science News
Keith Chambers/Scooter Project/Wikimedia Commons (CC BY-SA 3.0)
Keith Chambers/Scooter Project/Wikimedia Commons (CC BY-SA 3.0)