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Unique ID issued by UMIN UMIN000022497
Receipt No. R000025934
Scientific Title The relation between hearing level and influence of wearing mask
Date of disclosure of the study information 2016/06/01
Last modified on 2020/06/01 12:15:36

No. Disposal Last modified on Item of update
1 Insert 2016/05/27 18:10:57
2 Update 2017/05/29 16:14:50 Results
Results
3 Update 2020/06/01 12:15:36 Last follow-up date
Date of closure to data entry
Date analysis concluded


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