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. 2020 Jul 20;21:665. doi: 10.1186/s13063-020-04573-y

Fig. 1.

Fig. 1

Study site; distribution of trial clusters and initial interventions. Block zones are shown in different background colors; initial intervention in each cluster is shown in different boundary colors. LLIN, long-lasting insecticidal net; PBO, piperonyl butoxide-treated LLIN; IRS, indoor residual spraying