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Fig 1.

SPIRIT flow diagram of study events.

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Fig 2.

CONSORT flow diagram of the study adapted from Campbell [

25].

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Fig 3.

Total number of eligible clusters in the Hyderabad region and their selection strategy.

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Fig 4.

Sampling procedure of the study participants.

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Fig 5.

Timeline of enrolment, intervention, and assessment of study participants.

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Table 1.

Primary and secondary outcomes of the study.

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Table 1 Expand