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
The serum concentration in which of the following human IgG subclasses is maximum?
assistant
The correct answer is  IgG 1 - 65%, IgG2- 23%. IgG3 -8% IgG4 - 4%