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. 2022 Jun 30;9:892831. doi: 10.3389/fmed.2022.892831

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Copyright © 2022 Jüngert, Paulsen, Jacobi, Horwath-Winter and Garreis.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Immunohistochemical analyses of prolactin inducible protein (PIP) in the human cornea (A) with corneal epithelium (CE), lacrimal gland (B) and eyelid (C) with Meibomian gland (MG). The antibody reaction is visible by the intracellular red reaction product. Pictures represent meaningful immunohistochemical analyses of sections obtained from 10 different cadavers for each tissue (n = 10). (A,B) and (C) Inlays show higher magnification. Nuclei are counterstained with hemalum (blue). Arrows and Arrowheads accentuate the reactivity localization.