Cochrane has not consistently followed the COPE guidelines

Ref ID 687
First Author H. Hemila
Journal EUROPEAN JOURNAL OF CLINICAL INVESTIGATION
Year Of Publishing 2020
URL https://dx.doi.org/10.1111/eci.13216
Keywords Cochrane
Open data
Transparency
Error
Vitamins and supplements
Problem(s) Weaknesses identified in some Cochrane reviews
Errors in effect estimate calculations or data synthesis
Data extraction errors and double counting
Number of systematic reviews included 1
Summary of Findings Data extraction and data synthesis errors highlighted by the author, were subsequently replaced in the Cochrane review. However the author's comment regarding these errors and the original erroneous figures from review were removed from the scientific record of the Cochrane library.
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? Not Applicable
Are the methods of the article described in enough detail to replicate the study?