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Cassie Gretschel and her little brother, Max, have a wonderful Christmas tradition.

All photos by Cassie Gretschel used with permission

Gretschel says Max, who is 25, has severe mental and physical disabilities, including Cerebral Palsy and scoliosis. She writes that his brain development is on par with a 5-year-old, and that he has impaired vision and spends most of his time in a wheelchair.

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