A sister's gift means life for teenager stricken with leukemia

Frank, 16, was diagnosed with leukemia in April 2011. Maryssa Diaz's bone marrow was a match, and a transplant was performed at University Hospital in San Antonio on March 20, 2012.

http://m.victoriaadvocate.com/news/2013/mar/29/sl_leukemia_kid_033013_204980/?features