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
Framingham hea study is?
assistant
The correct answer is  Ans. is b i.e., Coho study Example of coho sutdies 1) Framingham hea study is a classical example of coho sutdy. 2) Smoking and lung cancer study. 3) Oral contraceptives and health study.