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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Essential for tumor metastasis is-
assistant
The correct answer is  Angiogenesis is the mechanism of formation of new blood vessels. It is very critical in establishing the metastasis at the new area. Basic Pathology, Robbins. Page no.: 194