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4. Tamil Nadu Govt notifies, invokes Tamil Nadu Public Health Act, 1939 to prevent spread of COVID-19 infection. 2021 Nov 20; Available from: https://newsonair.gov.in/News?title=Tamil-Nadu-Govt-notifies%2C-invokes-Tamil-Nadu-Public-Health-Act%2C-1939-to-prevent-spread-of-COVID-19-infection&id=429990
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