DOI:
10.1055/s-00025476
Endoscopy International Open
LinksClose Window
References
Wells GA, Shea B, O’Connell D et al.
The Newcastle-Ottawa Scale (NOS) for assessing the quality of nonrandomized studies in meta-analysis.
2011 Accessed September 2, 2013.
Search in:
We do not assume any responsibility for the contents of the web pages of other providers.