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Cluster headache
Histamine headache, one-sided head pain that involves tearing of the eyes, drooping eyelid and a stuffy nose, unlabeled.
© Alila Medical Media
Image size: 20.0 Mpixels (57.2 MB uncompressed) - 5000x4000 pixels (16.7x13.3 in / 42.3x33.9 cm at 300 ppi)