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Fabio Baldi declares no conflict of interest.
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Baldi, F. PPI-Refractory GERD: an Intriguing, Probably Overestimated, Phenomenon. Curr Gastroenterol Rep 17, 25 (2015). https://doi.org/10.1007/s11894-015-0451-3
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DOI: https://doi.org/10.1007/s11894-015-0451-3