Exam (elaborations)
Nats 1670 Final Exam questions and answers well illustrated.
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Nats 1670 Final Exam questions and answers well illustrated. What was the life expectancy in the early 1900's? - correct answer. Under the age of 50, with a 25% child mortality rate. When was the first vaccine created? - correct answer. 1880 ____________ ___________...
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