NEW YORK (Reuters Health) - When a dipstick test suggests there's blood in the urine, the next step should be to examine a sample of the urine under a microscope to make sure the dipstick result is ...

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 ...

At times, even the smallest entities in the body may arrange themselves to create patterns that are surprisingly ordered. For ...