Detection of T lymphocytes specific for human endogenous retrovirus K (HERV-K) in patients with seminoma. Dahkki Rakoff-Nahoum, S, Kuebler, P, Heymann, J, E Sheehy, M, Ortiz, G, S Ogg, G, Barbour, J, Lenz, J, Steinfeld, A, Nixon, D