Oosterhuis, J. W. A., Schapers, R. F. M., Janssen-Heijnen, M. L. G., Pauwels, R. P. E., Newling, D. W., & ten Kate, F. (2002). Histological grading of papillary urothelial carcinoma of the bladder: Prognostic value of the 1998 WHO/ISUP classification system and comparison with conventional grading systems. Copyright 2002 Journal of Clinical Pathology.

Oosterhuis, J W A., R F M. Schapers, M L G. Janssen-Heijnen, R P E. Pauwels, D W. Newling, e F. ten Kate. Histological Grading of Papillary Urothelial Carcinoma of the Bladder: Prognostic Value of the 1998 WHO/ISUP Classification System and Comparison With Conventional Grading Systems. Copyright 2002 Journal of Clinical Pathology, 2002.

Oosterhuis, J W A., et al. Histological Grading of Papillary Urothelial Carcinoma of the Bladder: Prognostic Value of the 1998 WHO/ISUP Classification System and Comparison With Conventional Grading Systems. Copyright 2002 Journal of Clinical Pathology, 2002.