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
In Down's syndrome, the serum markers..........
assistant
The correct answer is  Triple test (combined test): MSAFP, Unconjugated estriol (E3) and hCG. Quadruple test: MSAFP, UE3, hCG, Inhibit-A Integrated test: NT, PAPP-A + hCG reference: D C Dutta's Textbook of obstetrics 7th edition page no 494