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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.
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Cause to effect progression is seen in all EXCEPT:
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The correct answer is  ANSWER: (A) Case control studyREF: Park 20th edition page 67 Repeat in December 2011Cause to effect (disease) = prospective study (cohort study)Effect (disease) to cause = retrospective study (case control study)RCT and ecological studies are also prospective studies