TY - JOUR AN - 7 AU - Lim,C.H. AU - Rotimi,O. AU - Dexter,S.PL. AU - Axon,A.TR. TI - Randomized crossover study that used methylene blue or random 4-quadrant biopsy for the diagnosis of dysplasia in Barrett's esophagus. JO - Gastrointestinal Endoscopy PY - 2006 VL - 64 SP - 195-199 M2 - 195 DO - 10.1016/j.gie.2005.07.025 ER -