"White opaque substance" and "light blue crest" within gastric flat tumors or intestinal metaplasia: same or different signs?

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@article{Matsushita2009WhiteOS, title={"White opaque substance" and "light blue crest" within gastric flat tumors or intestinal metaplasia: same or different signs?}, author={Mitsunobu Matsushita and Shigeo Mori and Kazushige Uchida and Akiyoshi Nishio and Kazuichi Okazaki}, journal={Gastrointestinal endoscopy}, year={2009}, volume={70 2}, pages={402; author reply 402-3} }