UMIN-CTR History

Name：　　UMIN ID：

Unique ID issued by UMIN	UMIN000033032
Receipt number	R000037636
Scientific Title	Effect of hospital and surgeon volume on mortality following major operations: umbrella review of meta-analyses of observational studies
Date of disclosure of the study information	2018/06/20
Last modified on	2018/06/18 10:42:49

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