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Immune system. Man with strong and man with weak immunity. Concept of medical protection and safety from attack viruses, germs and bacteria. Vector isolated illustration.
Tired teen girl rubbing dry irritable eyes feel eye strain tension migraine after computer work, exhausted young woman worker student relieving headache pain, bad weak blurry vision, eyesight problem
Close-up of hands senior woman trying to hold a glass of water. Causes of hand shaking include Parkinson's disease, stroke, or brain injury. Mental health neurological disorder
Front view image of brown Chihuahua dog lying down by the bowl of dog food and ignoring it. Sad or sick chihuahua dog get bored of food. pet's health and pet's behavior.

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