Medicine: The Sickle Threat

When Marclan Walker was born in Griffin, Ga., she weighed 7 Ibs. and appeared perfectly normal, just like her two older sisters. Not until Marclan was five months old did her mother notice anything unusual. Then it was a lack of infant energy. "I had no worry about her falling or wriggling off a bed," Myrtis Walker says, "because she just stayed exactly where she was put." But soon her father, the Rev. Lorenda R. Walker, took a pastorate in Columbus. The trip to Ohio in a model A Ford was rough, and Marclan...

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