Add Yahoo as a preferred source to see more of our stories on Google. human red blood cells under microscope with two white blood cells When a pregnant woman had her blood sampled back in 1972, ...

For half a century, a tiny quirk on the surface of red blood cells has puzzled doctors and put a small group of patients at risk during transfusions. That mystery has now been resolved with the ...

For over fifty years, the scientific community has grappled with an unsolved puzzle in the realm of human blood types. It all began in 1972 when doctors discovered something extraordinary during the ...