African American naukowiec w okularach za pomocą mikroskopu, a następnie patrząc na aparat fotograficzny - Materiał filmowy & wideo

Portrait of korean male doctor lecturing for his multiracial doctors-partners about combination different chemical compounds in solving problems of medicine. Slow motion

4K Medical researcher looking at a slide under microscope and working on computer

4K Close up of medical researcher in the lab looking at a slide under microscope

4K Close up of medical researcher in the lab looking at a slide under microscope

Close up view of african american scientist in glasses using microscope

Portrait of smiling african american doctor in glasses looking at camera

Selective focus of african american scientist in glasses looking at blood sample in flask

Focused african american doctor adding red liquid into test tube while making analysis in laboratory

Selective focus of african american scientist in glasses using microscope with sunlight on background

Mature and attractive doctor using laptop near documents in clinic