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Eye test, cover or smile with women in clinic with diagnostic tool for prescription lens or help. Service, depth perception or optometrist in vision assessment with person, optician or visual check
Urinalysis, urine cup with reagent strip pH paper test and comparison chart in laboratory.
Students in a classroom focusing on their work. A girl in the foreground writes diligently. Classroom environment with students studying and learning. Student learning in classroom, exam in school.
man prepare at night before the exam continuous single line art drawing sketch on white background

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