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Naumann CM, Hamann MF, Wefer B, Kaufmann S, Al Najar A, Seif C, Braun PM, Hautmann S, Jünemann KP, van der Horst C.Naumann CM, et al. Among authors: hamann mf.Urologe A. 2007 Nov;46(11):1514-8. doi: 10.1007/s00120-007-1570-8.Urologe A. 2007.PMID: 17926016German.
Hamann MF, van der Horst C, Naumann CM, Wiederholt C, Seif C, Jünemann KP, Braun PM.Hamann MF, et al.Urologe A. 2008 Aug;47(8):988-93. doi: 10.1007/s00120-008-1693-6.Urologe A. 2008.PMID: 18415071German.
Kaufmann S, Al-Najar A, Boy S, Hamann MF, Naumann CM, Fritzer E, Jünemann KP, van der Horst C.Kaufmann S, et al. Among authors: hamann mf.Urologe A. 2010 Apr;49(4):525-9. doi: 10.1007/s00120-009-2190-2.Urologe A. 2010.PMID: 20033666German.
Naumann CM, Bothe K, Munk-Hartig AK, van der Horst C, Massad H, Lützen U, Jünemann KP, Hamann MF.Naumann CM, et al. Among authors: hamann mf.Urologe A. 2016 May;55(5):641-4. doi: 10.1007/s00120-015-3979-9.Urologe A. 2016.PMID: 26450095German.