Jack Oberweiser has been giving blood for close to half a century. He started when he was in college and found out he had an O-negative blood type, also known as the universal blood type.
Jack Oberweiser has been giving blood for close to half a century. He started when he was in college and found out he had an O-negative blood type, also known as the universal blood type.
Jack Oberweiser has been giving blood for close to half a century. He started when he was in college and found out he had an O-negative blood type, also known as the universal blood type.
Jack Oberweiser has been giving blood for close to half a century. He started when he was in college and found out he had an O-negative blood type, also known as the universal blood type.