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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
Which of the following is the most commonly used 'fixative' in diagnostic pathology?
assistant
The correct answer is  Formaldehyde is the most commonly used fixative in diagnostic pathology. Ref: Surgical Pathology Dissection: An Illustrated Guide By William H. Westra, Page 14.