doctor holding a test tube of blood and writing on a form
Doctor nurse holding blood test tube capsule. Observing and analizing. Indoor windows on background.
doctor holding a test tube Covid-19
extreme closeup of test tube of blood taken for a blood test
doctor with blood in tubes test character
Closeup technician hand in glove holding test tube with blood. Female doctor examining blood sample for coronavirus. Unrecognizable scientist working in laboratory. Medicine and health concept
Researcher hand holding test tube for checking covid-19 in the blood.
Medical clinic. Nurse holding an test tube with blood sample. Close up
Medical clinic. Nurse holding an test tube filled with blood. Close up
Lab Scientist at Work: Young Multicultural Virologist Conducting Blood Test
Close-up of doctor in gloves holding test tube with blood inside, she examining it during scientific experiment in the lab
doctor in biohazard ptotective suit holding sample of coronavirus in test tube