Middle age man wearing scientist uniform using microscope at laboratory
Schlüsselwörter
senior,
mature,
elderly,
man,
male,
adult,
hispanic,
person,
portrait,
smile,
smiling,
happy,
confident,
looking,
science,
laboratory,
research,
medicine,
scientist,
experiment,
laboratory,
technology,
medicals,
professional,
chemistry,
microscope,
chemist,
biology,
analysis,
work,
men at work,
working,
tube,
test,
goggles,
clipboard,
checklist,
document,
write,
clinic,
center,
hospital,
room,
indoor,
indoor
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