pone.0229176.g002.tif (697.58 kB)

Flow chart of the sampling and matching process.

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posted on 20.02.2020, 18:26 by Ya-Ting Huang, Ying-Wei Wang, Chou-Wen Chi, Wen-Yu Hu, Rung Lin Jr, Chih-Chung Shiao, Woung-Ru Tang

CCI = Charlson Comorbidity Index.

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