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
A robust male baby with vigorous feeding and immediate vomiting at 2 months of age. Most probable diagnosis is:
assistant
The correct answer is  Ans is 'd' i.e. Congenital hyperophic pyloric stenosis