Cientista maduro verificando reagente em tubo de ensaio - Banco de fotos e imagens

Mature scientist holding flask in chemical lab

Senior male scientist wearing mask to conduct test tube experiment

Blood test sample in lab

Mature male doctor looking confused

Portrait mature male scientist holding magnifying glass in lab

Portrait of a handsome mature male lab technician concentrated

Mature scientist in a white coat with magnifying glass

Mature scientist in a white coat with magnifying glass

Close-up portrait of a male researcher holding a test tube

Confident man holding a laboratory glass

Man working with liquids in lab

Scientist making test or research in clinical laboratory

Microbiologist holding a tube with blue liquid

Female lab worker holding test-tube

Concentrated middle-aged researcher using pipette

Photo of a lab assistant holding a flask and pipette

Portrait of confident mid adult doctor working in a lab