This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Not included in Infant moality rate: March 2012 \nSelect and explain. \nA. Perinatal moality, B. Early neonatal, C. Late neonatal moality, D. Post neonatal moality', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: A i.e. Perinatal moality Infant moality rate/IMR is defined as "the ratio of infant deaths (bih to 1 year of age) registered in a given year to the total number of live bihs registered in the same year; usually expressed as a rate per 1000 live bihs" Numerators in \'natal\' death Perinatal death includes late foetal deaths (28 weeks of gestation and more) + early neonatal deaths (1st week) Early neonatal death occurs between bihs to first 7 days of life Late neonatal death occurs between 7th days of life till 28th day of life Post-neonatal deaths occurs between 28th day of life till 1 year', 'role': 'assistant'}]