Novel probe-based confocal laser endomicroscopy criteria and interobserver agreement for the detection of dysplasia in Barrett's esophagus. - Gaddam S; Mathur SC; Singh M; Arora J; Wani SB; Gupta N; Overhiser A; Rastogi A; Singh V; Desai N; Hall SB; Bansal A; et al. (The American journal of gastroenterology, 2011)