P. D. B. Helpap

The biological significance of atypical hyperplasia of the prostate

P. D. B. Helpap, 2004, Virchows Archiv A.

The Development of the Red Pulp in the Spleen

P. D. B. Helpap, D. Pd, P. D. B. Helpap, 1982, Advances in Anatomy Embryology and Cell Biology.

Cell kinetic and cytological grading of prostatic carcinoma

P. D. B. Helpap, 2004, Virchows Archiv A.

Therapieinduzierte Tumorregression des Prostatakarzinoms

B. Helpap, J. Köllermann, P. D. B. Helpap, 2004, Der Pathologe.