Most living kidney donors return to their daily lives in a matter of weeks, but for some, unforeseen physical and financial complications arise. iStockphoto.com hide caption

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Scarlette Wiens touches the chin of her father, face-transplant recipient Dallas Wiens. Lightchaser Photography/Brigham and Women's Hospital hide caption

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Robert O'Rourke was diagnosed with idiopathic pulmonary fibrosis in late 2006. The lung disease causes scarring in the lungs, which makes breathing difficult. Courtesy of Robert O'Rourke hide caption

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