On 2015 Apr 02, Harri Hemila commented:

The Cochrane review “vitamin C supplementation for asthma”, withdrawn by Kaur B, 2013, misled readers for over a decade.

The first version of this Cochrane review “vitamin C supplementation for asthma” was published in 2001 by Kaur B, 2001. The 2001 version had serious errors in the extraction and analysis of data, which are summarized in Pubmed Commons. Those 2001 errors were thereafter passed on to the 2004 update by Ram FS, 2004 and thereafter on to the 2009 update by Kaur B, 2009. See a summary of the major errors in the 2009 version of the Cochrane review in Pubmed Commons. Thus, the Cochrane review “vitamin C supplementation for asthma”, initially published in 2001 by Kaur B, 2001, misled readers for over a decade before it was withdrawn.

On 2015 Apr 02, Harri Hemila commented:

The Cochrane review “vitamin C supplementation for asthma”, withdrawn by Kaur B, 2013, misled readers for over a decade.

The first version of this Cochrane review “vitamin C supplementation for asthma” was published in 2001 by Kaur B, 2001. The 2001 version had serious errors in the extraction and analysis of data, which are summarized in Pubmed Commons. Those 2001 errors were thereafter passed on to the 2004 update by Ram FS, 2004 and thereafter on to the 2009 update by Kaur B, 2009. See a summary of the major errors in the 2009 version of the Cochrane review in Pubmed Commons. Thus, the Cochrane review “vitamin C supplementation for asthma”, initially published in 2001 by Kaur B, 2001, misled readers for over a decade before it was withdrawn.