Proceedings of the Fourth International Symposium on [title] held December 1990, in Sydney, Australia. Participants share information that may hasten the day when patients with currently untreatable cancers can reasonably hope for substantial remissions. Topics include: binary therapies, thermal NCT for glioblastoma, and for subcutaneous melanoma, epithermal NCT and its use in a spontaneous dog brain tumor model, ocular melanoma in rabbits, rat glioma model, and melanoma xenografts in nude mice. Annotation copyright Book News, Inc. Portland, Or.