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Radioactive material or ionizing radiation warn sign.Radioactive hazard sign. Nuclear non-ionizing radiation symbol. Illustration of yellow triangle warning sign with trefoil icon inside.
People in protective suits from the Spanish flu epidemic coronavirus contaminated background
industrial smoke from chimney on blue sky
Pollution and business or industrial development risk concept as a machine part shaped tree cog damaged by contaminated water with 3D illustration elements.
Closeup shot of a medical practitioner making a heart shape with his hands. Cheerful male surgeon touching fingers in shape of heart and holding hands near chest.

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