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 has worst prognosis in CLL?
assistant
The correct answer is  13q deletion : Indolent course ; good prognosis Trisomy 12 : Intermediate prognosis 11q deletion : Poor prognosis 17p deletion : Poorest prognosis