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Will U, Seidel T, Bosseckert H.Will U, et al.Endoscopy. 2002 Sep;34(9):748. doi: 10.1055/s-2002-33453.Endoscopy. 2002.PMID: 12195339No abstract available.
Will U, Zinsser E, Koppe P, Eitner K, Hinz S, Bosseckert H.Will U, et al.Zentralbl Chir. 1998;123 Suppl 2:62-4.Zentralbl Chir. 1998.PMID: 9622871German.No abstract available.
Will U, Masri R, Bosseckert H, Knopke A, Schönlebe J, Justus J.Will U, et al.Endoscopy. 1998 May;30(4):432-5. doi: 10.1055/s-2007-1001297.Endoscopy. 1998.PMID: 9689523
Zinsser E, Will U, Gottschalk P, Bosseckert H.Zinsser E, et al. Among authors: will u.Endoscopy. 1999 May;31(4):S26.Endoscopy. 1999.PMID: 10376468No abstract available.
Zinsser E, Hoffmann A, Will U, Koppe P, Bosseckert H.Zinsser E, et al. Among authors: will u.Z Gastroenterol. 1999 Aug;37(8):707-13.Z Gastroenterol. 1999.PMID: 10494605German.