20/20

7 Going On 70: A Barbara Walters Special

Inside the lives of two young girls who have progeria -- a rapid aging disease.

PHOTOS: '20/20: A Barbara Walters Special'

Barbara Walters Progeria
Barbara Walters Progeria
Barbara Walters Progeria
Barbara Walters Progeria
Barbara Walters Progeria
Barbara Walters Progeria
Barbara Walters Progeria
Barbara Walters Progeria
Barbara Walters Progeria
Kaylee presents Barbara Walters with one of her drawings. (Donna Svennevik/ABC)
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