<https://emj.emg-health.com/allergy-immunology/article/immunopathology-of-allergic-conjunctivitis/>
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<https://emj.emg-health.com/wp-content/uploads/sites/2/2018/03/Figure-2-Photographs-of-inferior.png>
<https://www.emjreviews.com/allergy-immunology/article/immunopathology-of-allergic-conjunctivitis/>