REFERENCES
- Cappell , M. S. 2010 . Is lumping peer-reviewed case reports together with non-peer-reviewed comments for publication as letters to the editor appropriate? . American Journal of Gastroenterology , 105 : 1901 – 1902 .
- Kirsch , M. 2008 . Letters to the editor: Competition or search for truth? . American Journal of Gastroenterology , 103 : 1596 – 1597 .
- Peh , W. C. and Ng , K. H. 2010 . Writing a letter to the editor . Singapore Medical Journal , 51 : 532 – 535 .