system
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 antibody is diagnostic of mixed connective tissue disease
assistant
The correct answer is  Anti-U1-ribonucleoprotein - MCTD
Anti-histidyl t-RNA synthetase - Inflammatory myopathies.