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Normal pineal gland producing melatonin and serotonin. Optical microscope X100, Stock Photo, Picture And Rights Managed Image. Pic. VD7-2972552 | agefotostock
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Sagittal section of a human pineal gland. Numerous calcareous concretions can be seen, most of them broken by artefact. Light microscope micrograph st Stock Photo - Alamy
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