Test tubes with blood samples are ready for laboratory analysis.
Keywords
test tube,
blood,
sample,
analysis,
laboratory,
diagnostic,
research,
serum,
plasma,
cellular,
massa,
medicine,
test,
biochemistry,
rack,
container,
specimen,
capillary,
venous,
testing,
health,
vessel,
storage,
labeling,
lid,
red,
clinic