Citation
Parrilla P, Ortiz A, Martinez de Haro LF, Aguayo JL, Ramirez P. Evaluation of the magnitude of gastro-oesophageal reflux in Barrett's oesophagus. Gut 1990 Sep;31(9):964-7 Abstract available at http://www.ncbi.nlm.nih.gov/pubmed/2210462.
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