Freitag J, Müller G W, Buhtz C, Buhtz P, Freitag G, Richter A
Z Urol Nephrol. 1984 May;77(5):269-75.
120 patients with malignant tumours of the testicles were subjected to follow-up studies for up to 7 years after the completion of therapy. In 27 cases (22%) metastases were found, which appeared almost exclusively within the first 3 years after treatment. There was definite evidence of metastasis in 9 out of 46 cases (19%) of seminoma and with 18 out of 74 nonseminomatous tumours.
120例睾丸恶性肿瘤患者在完成治疗后接受了长达7年的随访研究。在27例（22%）患者中发现有转移，几乎均出现在治疗后的头3年内。46例精原细胞瘤中有9例（19%）、74例非精原细胞瘤中有18例有明确的转移证据。
