Verärgerter Wissenschaftler in weißem Mantel, der sein Gesicht in der Nähe des Laptops mit leerem Bildschirm und Mikroskop auf dem Schreibtisch verdeckt, Banner - Stockfoto & -bild

Collage of upset scientist looking at laptop and covering eyes near samples

Businesswoman having headache while at workplace with pills in office

Selective focus of terrified woman in mask standing near colleague lying on desk near laptop in office with smoke

Panoramic shot of stressed businesswoman in glasses touching temples

Serious concentrated businesswoman using laptop while putting heand on hand

Selective focus of tired operator in headset having headache

Partial view of exhausted businesswoman sleeping at workplace with documents in office

Exhausted pretty businesswoman sitting at work desk and holding hand near face

Selective focus of tired woman touching temples while suffering from migraine near laptop and cup