Germline de novo mutations in families with Mendelian cancer syndromes caused by defects in DNA repair by Sherwood, K, Ward, JC, Soriano, I, Martin, L, Campbell, A, Rahbari, R, Kafetzopoulos, I, Sproul, D, Green, A, Sampson, JR, Donaldson, A, Ong, K, Heinimann, K, Nielsen, M, Thomas, H, Latchford, A, Palles, C, Tomlinson, I