in the serum of five patients with malignant germ cell tumor of the testis , prolactin as well as one or several of the gonadotropic , androgenic , estrogenic , and gestagenic hormones appeared to have the quality of tumor markers so that monitoring their serum level together with that of tissue polypeptide antigen , carcinoembryonic antigen , alpha-fetoprotein , and ferritin was useful .
C0041365
tumor markers
C0007082
carcinoembryonic antigen