Mutations and impaired function of LKB1 in familial and non-familial Peutz-Jeghers syndrome and a sporadic testicular cancer. by Ylikorkala, A, Avizienyte, E, Tomlinson, I, Tiainen, M, Roth, S, Loukola, A, Hemminki, A, Johansson, M, Sistonen, P, Markie, D, Neale, K, Phillips, R, Zauber, P, Twama, T, Sampson, J, Järvinen, H, Mäkelä, T, Aaltonen, L