1. Metastatic cancer of unknown origin: non-squamous cell type;Neumann;Sem Oncol,1982
2. Cancer of unknown primary site;Ultmann,1985
3. Treatment of the patient with adenocarcinoma of unknown origin;Moertel;Cancer,1972
4. Metastatic carcinomas from occult primary tumors;Didolkar,1977
5. The Cup syndrom (carcinoma unknown primary);Nissenblatt;Cancer Treat Rep,1981