found: His Over de behandeling van de perforerende buikverwondingen, 1951
found: Info. converted from 678, 2012-10-02(b. 3-2-14)
found: A clinical and urodynamic study of tadenan in the treatment of benign prostatic hypertrophy, 1977:title page (P.J. Donker)
found: Nederlands Tijdschrift Voor Geneeskunde (Website), viewed July 19, 2019:Artikelen In memoriam prof.dr.P.J. Donker (Pieter Donker; died February 19, 1999; Scientific recognition was expressed in honorary memberships of the Nederlandse Vereniging voor Urologie, the Deutsche Gesellschaft für Urologie; founder of the Urology course in Leiden) - https://www.ntvg.nl/artikelen/memoriam-profdrpjdonker/volledig