1. Cryptorchidism: an apparent substantial increase since 1960;Group, I.John Radcliffe Hospital Study;Br Med J,1986
2. Apparent doubling of frequency of undescended testis in England and Wales in 1962-81;Chilvers, C.; Pike, M.C.; Forsman, D.; Fogelman, K.; Wadsworth, M.E.J.;Lancet,1984
3. Risk factors for cancer of the testis in young men;Henderson, B.E.; Benton, B.; Jing, J.; Yu, M.C.; Pike, M.C.;Int J Cancer,1979
4. Testicular cancer risk among young men: Role of cryptorchidism and inguinal hernia;Pottern, L.M.; Brown, L.M.; Hoover, R.N.;J Nati Cancer Inst,1985
5. High incidence of undetected neoplasia in maldescended testes;Krabbe, S.; Berthelsen, J.G.; Volsted, P.;Lancet,1979