Single nucleotide polymorphisms in TNFSF15 confer susceptibility to Crohn's disease. per Yamazaki, K, McGovern, D, Ragoussis, J, Paolucci, M, Butler, H, Jewell, D, Cardon, L, Takazoe, M, Tanaka, T, Ichimori, T, Saito, S, Sekine, A, Iida, A, Takahashi, A, Tsunoda, T, Lathrop, M, Nakamura, Y