THE PITANGO BLOOD SITE THE LAKE RUBUS PITANGO Scientific studies https://www.discovery.com/science/Rhnull-Rarest-Blood-Type-on-Ear https://worldhistoryx.quora.com/The-oldest-blood-ever-found https://www.science.org.au/curious/people-medicine/rare-blood-types Hospitals that used Pitango blood units Medical cases https://www.bristol.ac.uk/news/2024/september/blood-group.html Publications
