TY - RPRT TI - The lower esophageal sphincter in gastroesophageal reflux in children. AU - J J Herbst AU - L S Book AU - D G Johnson AU - S Jolley PY - 1979 DO - 10.1097/00004836-197906000-00004 UR - https://pubmed.ncbi.nlm.nih.gov/45440/ ID - 45440 ER -