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Gratzke C, Becker AJ, Park JW, Reich O, Waldkirch E, Schlenker B, Stief CG.Gratzke C, et al. Among authors: stief cg.Dtsch Med Wochenschr. 2005 Dec 16;130(50):2899-903. doi: 10.1055/s-2005-923324.Dtsch Med Wochenschr. 2005.PMID: 16342015German.No abstract available.
Schultheiss D, Truss MC, Becker AJ, Stief CG, Jonas U.Schultheiss D, et al. Among authors: stief cg.Urologe A. 1997 Jul;36(4):351-5. doi: 10.1007/s001200050111.Urologe A. 1997.PMID: 9340903German.