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CDC or biohazard tech adding blood sample to test tube
closeup of doctor holding test tube of blood
doctor holding a test tube of blood and writing on a form
The hand shakes a test tube with blood
The doctor holds a tube with blood in hand
Male doctor and nurse discussing blood sample
Male doctor talking to nurse holding blood sample
Young beautiful female biologist handing a stack full of blood samples test tubes to her coworker at the laboratory. Medicine, healthcare, immunology, microbiology concept.
Vintage 1930 Nurse Handing The Doctor A Blood Sample In A Test Tubecolor Version
Medical clinic. A blood test. A nurse working with blood samples. Side angle
Medical clinic. Nurse holding an test tube with blood sample. Close up
Medical clinic. Nurse holding an test tube filled with blood. Close up
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