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van Dam L, de Wijkerslooth TR, de Haan MC, Stoop EM, Bossuyt PM, Fockens P, Thomeer M, Kuipers EJ, van Leerdam ME, van Ballegooijen M, Stoker J, Dekker E, Steyerberg EW.van Dam L, et al. Among authors: fockens p.Endoscopy. 2013;45(3):182-8. doi: 10.1055/s-0032-1326080. Epub 2013 Feb 27.Endoscopy. 2013.PMID: 23446667Clinical Trial.
van Lanschot JJ, van Leerdam M, van Delden OM, Fockens P.van Lanschot JJ, et al. Among authors: fockens p.Dig Surg. 2002;19(2):99-104. doi: 10.1159/000052019.Dig Surg. 2002.PMID: 11978993Free article.No abstract available.
Peters F, Kara M, Rosmolen W, Aalders M, Ten Kate F, Krishnadath K, van Lanschot J, Fockens P, Bergman J.Peters F, et al. Among authors: fockens p.Endoscopy. 2005 May;37(5):418-24. doi: 10.1055/s-2005-861198.Endoscopy. 2005.PMID: 15844019