Test tubes with liquid in laboratory, Doctor hand holding dropper with dripping or transparent glass pipette, dropper for instillation nose or eyes.
Palabras clave
laboratory,
laboratory,
medicine,
science,
test,
chemical,
chemistry,
research,
medicals,
scientist,
experiment,
glasses,
tube,
liquid,
chemist,
scientific,
biotechnology,
pipette,
analysis,
biology,
doctor,
equipment,
bottle,
test tube,
syringe
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