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, ...
Look at blood smeared across a slide under a microscope, and you see a mystery revealed. The ruby-colored, vital, fluid of life we call blood is made of lots of stuff. There is the liquid plasma that ...
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, ...
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