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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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Rigor mois stas in -
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The correct answer is  Rigor mois stas in myocardium in an hour after death. It is first seen in involuntary muscles then voluntary muscles. Dr. Narayana Reddys Synopsis of Forensic Medicine & Toxicology 27 th edition pg. 79.