CORRECTIONS
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van den Brink GR, Hardwick JCH, Nielsen C, *et al*. Sonic hedgehog expression correlates with fundic gland differentiation in the adult gastrointestinal tract. [J Clin Pathol: Mol Pathol 2003;56:150–5](http://mp.bmj.com/lookup/volpage/56/150). This article was originally published in 

Gut2002;51:628–33

[Abstract/FREE Full Text](http://mp.bmj.com/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6NjoiZ3V0am5sIjtzOjU6InJlc2lkIjtzOjg6IjUxLzUvNjI4IjtzOjQ6ImF0b20iO3M6MjQ6Ii9tb2xwYXRoLzU2LzQvMjQ4LjMuYXRvbSI7fXM6ODoiZnJhZ21lbnQiO3M6MDoiIjt9) 

. Any citations of this article should refer to the original article in *Gut*.

Ryan BM, Lefort F, McManus R, *et al*. A prospective study of circulating mutant KRAS2 in the serum of patients with colorectal neoplasia: strong prognostic indicator in postoperative follow up. [J Clin Pathol: Mol Pathol 2003;56:172–9](http://mp.bmj.com/lookup/volpage/56/172). This article was originally published in 

Gut2003;52:101–8

[Abstract/FREE Full Text](http://mp.bmj.com/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6NjoiZ3V0am5sIjtzOjU6InJlc2lkIjtzOjg6IjUyLzEvMTAxIjtzOjQ6ImF0b20iO3M6MjQ6Ii9tb2xwYXRoLzU2LzQvMjQ4LjMuYXRvbSI7fXM6ODoiZnJhZ21lbnQiO3M6MDoiIjt9) 

. Any citations of this article should refer to the original article in *Gut*.