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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 common cause of subacute endocarditis?
assistant
The correct answer is  Intraoral Streptococcus viridans is the most common cause of subacute endocarditis. 
Staphylococcus aureus is the most common cause of acute endocarditis.