Dave, Harish P. G., Chiristine I. White, Richard Schulof, and Frederick P. Avis. 1992. “Carcinoma of Unknown Primary Site a Complete and Sustained Response With Interleukin-2, Alpha Interferon and 5 Fluorouracil Leucovorin”. Acta Oncologica 31 (5):592-93. https://doi.org/10.3109/02841869209088313.