Αφροαμερικάνος διευθυντής που υποφέρει από πονοκέφαλο και κρατώντας ένα ποτήρι νερό στο γραφείο, πανό - Φωτογραφίες & Εικόνες Αρχείου

What do we have here. two scientists wearing face shields while working together in a lab

A female chemist holds test tube of glass in his hand overflows liquid solution potassium permanganate conducts an analysis reaction takes various versions reagents using chemical manufacturing.

Female medicine doctor hand hold pill in hand. Prescription to patient at worktable. Panacea and life save, prescribing treatment, legal drug store concept. Empty form ready to be used

Closeup of a young man dropping an effervescent antacid in a glass of water. African man hardly put a soluble pill with a medicine for pain or a hangover in a glass of water