Prevalence of HIV infections and risk factors among homosexual men in The Netherlands [Abstract]H Houweling, TGM Sandfort, LG Wiessing, M Bosga, W Schop, R van den Akker29/01/1993Tijdschriftartikel
Prematuren en hepatitis B-vaccinatieR del Canho, PM Grosheide, LJ Gerards, RA Heijtink, SW Schalm13/01/1993Tijdschriftartikel
Polymerase chain reaction detection of herpes simplex virus in cerebrospinal fluidRH Boerman, ACB Peters, EPJ Arnoldus, AM van der Loon, et al.07/01/1993Tijdschriftartikel
Plankton in the river Rhine: structural and functional changes observed during downstream transportde Ruyter, W Amiraal, L Breebaart, GMJ Tubbing, B van Zanten18/01/1993Tijdschriftartikel
Pesticides in surface water, mechanisms of transport and control. Proceedings of the IUPAC workshop, August, Hamburg, 1991AJ Dobbs, WJGM Peijnenburg, TR Roberts, M Waldman22/01/1993Tijdschriftartikel
Pertussis toxin induced down regulation of the T cell receptor/CD3 complex in human T lymphocytesML Vogel, MH Witvliet, JT Poolman13/01/1993Tijdschriftartikel
Perspectives in residue analysis; the use of immobilized antibodies in (multi) residue analysisLA van Ginkel, RW Stephany, HJ van Rossum, PW Zoontjes05/01/1993Tijdschriftartikel
Performance characteristics of air quality measurement methodsHJ van de Wiel, ACF Junker, C de LaRiva, K Weber14/01/1993Tijdschriftartikel
Pathogenicity of Listeria monocytogenes: protection acquired by infection [Abstract]SHW Notermans, T Chakraborty21/01/1993Tijdschriftartikel