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Urticating hair (stimulus, cnida) of nettle. Visible glandular trichomes with burning acetylcholine. Nidle breaks off, fluid from retort-shaped cell enters skin. Stinging nettle (Urtica dioica) macro
A man in a white shirt holds his groin and holds a red heating pad with hot water in his hand. The concept of treatment of male diseases in the genital area.
Hand Holding Magnifying Glass Over Open Book
young girl measures her breasts
Team surgeon at work in operating room. Action. Close up of penis enlargement surgery to increase the size of a man penis, concept of male enhancement.

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