Culine, S 5-fluorouracil and leucovorin as second-line chemotherapy in carcinomas of unknown primary site. [electronic resource] - Anticancer research - 1455-7 p. digital Publication Type: Journal Article ISSN: 0250-7005 Subjects--Topical Terms: AdultAgedAntimetabolites, Antineoplastic--administration & dosageAntineoplastic Agents--administration & dosageFemaleFluorouracil--administration & dosageHumansLeucovorin--administration & dosageMaleMiddle AgedNeoplasms, Unknown Primary--drug therapySalvage Therapy--methodsSurvival RateTreatment Outcome