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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Ocul Surf. 2021 May 16;21:134–144. doi: 10.1016/j.jtos.2021.05.003

Figure 3:

Figure 3:

The signaling pathway activated by histamine through H1 and H2 receptors activated in the vascular smooth muscle cells, leading to vasodilation of microvessels in the conjunctiva.