Analysis of somatic retrotransposition in human cancers by Lee Eunjung, Iskow Rebecca, Yang Lixing, Gokcumen Omer, Haseley Psalm, Luquette Lovelace J, Lohr Jens G, Harris Christopher C, Ding Li, Wilson Richard K, Wheeler David A, Gibbs Richard A, Kucherlapati Raju, Lee Charles, Kharchenko Peter V, Park Peter J