Nurse holding test tube with blood, close-up. Blood test concept
Keywords
laboratory,
tube,
blood,
sample,
research,
test,
medicine,
analysis,
medicals,
biochemistry,
disease,
health,
liquid,
test tube,
equipment,
hospital,
laboratory,
microbiology,
result,
science,
biology,
diagnostic,
doctor,
care,
chemical,
virus