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book Epidemiology for Public Health Practice 5th Edition by Robert Friis,Thomas Sellers cover

Epidemiology for Public Health Practice 5th Edition by Robert Friis,Thomas Sellers

النسخة 5الرقم المعياري الدولي: 978-1449665494
book Epidemiology for Public Health Practice 5th Edition by Robert Friis,Thomas Sellers cover

Epidemiology for Public Health Practice 5th Edition by Robert Friis,Thomas Sellers

النسخة 5الرقم المعياري الدولي: 978-1449665494
تمرين 9
What is the definition of a natural experiment? Identify any recent examples of natural experiments. To what extent might changes in legislation to limit smoking in public places or to increase the speed limit on highways be considered natural experiments?
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Definition of a Natural Experiment:
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Epidemiology for Public Health Practice 5th Edition by Robert Friis,Thomas Sellers
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