TY - JOUR AU - Johnson, D A; Katz, P O; Levine, D TI - Prevention of relapse of healed reflux esophagitis is related to the duration of intragastric pH > 4 JO - J Clin Gastroenterol VL - 44 PY - 2010 SP - 475 EP - 478 N1 - et al. ER -