A pregnant woman's blood sample taken in 1972 was mysteriously missing a surface molecule found on all other known red blood ...

Caption: Human neutrophils visualized under a confocal microscope with cell membranes stained red and nuclei blue. When faced ...

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, ...