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Membrane (11)
The delicate membranes.
Cell Membrane Biology, Cell Membranes, Delicate Tissue, Membrane Biology, Mucous Membrane, Mucous Membranes, Mucus Membrane, Nerve Membranes, Permeable Membrane, Semipermeable Membrane, Tympanic Membrane.
See also: Mucus
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Key words: Membrane, Membranes, Mucus
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