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   Tokio Kinoshita et al, 2021, Frontiers in Medicine CrossRef
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   Shohei Kawachi et al, 2021, Systematic Reviews CrossRef
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   Maria Vera Cruz de Oliveira Castellano1 et al, 2022, Jornal Brasileiro de Pneumologia CrossRef
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   Constantin MUNTEANU et al, 2021, Balneo and PRM Research Journal CrossRef