Subject(s)

Humans , Male , Adult , Middle Aged , Follow-Up Studies , Neoplasms, Germ Cell and Embryonal , Testicular Neoplasms , alpha-Fetoproteins , Chorionic Gonadotropin, beta Subunit, Human , Biomarkers, Tumor , Neoplasm Metastasis , Neoplasms, Germ Cell and Embryonal , Recurrence , Testicular Neoplasms