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What is Point prevalence of a chronic disease is studied best by: and explain in detail?
Ans: B (Cross sectional study) Ref: Textbook of Preventive and Social Medicine, K. Park, 22nd edition page no 59Explanation:* Prevalence is an important measure of burden of disease in the community at a point of time or during a period of time. Accordingly they are called point prevalence and period prevalence.