Blood Smear, Light Micrograph
Science Photo Library - Steve Gschmeissner
Dr. Karl Landsteiner Working In His Lab
Bettmann
Red Blood Cells, Artwork
Andrzej Wojcicki
Blood Sample And Cotton Balls In Bowl
Cultura Science/Rafe Swan
Blood Cells, Artwork
Andrzej Wojcicki
Blood Sample And Cotton Balls In Bowl #1
Cultura Science/Rafe Swan