Social Sciences, asked by papaia820, 6 months ago

epidemiological method includes-1.cohort studies,
2. community trial, 3.field trial,
4. all of these.

Answers

Answered by krishsneha24

0

Answer:

answer is =4. all of these

Explanation:

epidemiological method includes all cohort studies, community trail, field trail

Answered by Anonymous

0

Answer:

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