Brother shaves head in honor of sister battling leukemia

Children's Healthcare of Atlanta shared a heartwarming post on Facebook this week about the unbreakable bond between two young siblings.

The post was about a little girl named Charlotte and her 3-year-old younger brother, Matthew. According to CHOA, Charlotte is currently undergoing chemotherapy to treat leukemia, and Matthew asked to have his head shaved to look just like her.

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"The bond between siblings is like no other," CHOA said.