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Pierzchalski P, Krawiec A, Ptak-Belowska A, Barańska A, Konturek SJ, Pawlik WW.Pierzchalski P, et al. Among authors: pawlik ww.Helicobacter. 2006 Apr;11(2):96-104. doi: 10.1111/j.1523-5378.2006.00383.x.Helicobacter. 2006.PMID: 16579839