Pozitivity je klíčem k úspěchu. Zaneprázdněn chemik pohledu do kamery s veselým úsměvem na tváři při práci s výtisky a notebooku v laboratoři. - Stock záběry a video

This hurts so much. Frustrated female scientist taking off her safety glasses and touching temples while struggling with a severe headache during a long day at a laboratory.

Good-looking experienced male doctor with gray beard and hair wearing white gown working with microscope and laptop in the medical laboratory

Professional purposeful experienced male doctor working in the medical laboratory with red solution in the test tube during chemical experiments

Serious project. Selective focus on a mature lab worker sitting at a table and focusing his attention on a clipboard while typing in data on a computer at work.

4K Close up portrait of smiling medical researcher working in the lab

This hurts so much. Frustrated female scientist taking off her safety glasses and touching temples while struggling with a severe headache during a long day at a laboratory.

Serious project. Selective focus on a mature lab worker sitting at a table and focusing his attention on a clipboard while typing in data on a computer at work.

Up and coming specialist. Serious man in a white coat and safety glasses comparing data while with documents and hi computer at a modern laboratory.

Need to take a pill. Mature woman wearing safety glasses massaging het temples after working long hours with a laptop and having intense headache at work.

No right for a mistake. Concentrated mature scientist wearing a labcoat sitting at a table and typing on a computer while working with printed out statistics fixed on a clipboard.

Let me see. Side view on a male scientist wearing safety glasses and a coat holding a clipboard and looking on printouts with diagrams and a map of the world working in a laboratory.