By donating 200 dolls wearing back braces, a young Colorado girl is hoping that scoliosis patients in Iowa will know they’re not alone. When Sydney Black got her first Chelsea doll (Barbie’s sister) and saw she was wearing a back brace, she felt better about being “different”. Sydney was diagnosed with scoliosis at age 4 and has been wearing a back brace for up to 20 hours a day since she was 6. …