Affiliation: | 1.Department of Pharmacy, Hospital de Heel, P.O. Box 210, 1500, EE Zaandam, the Netherlands ;2.ACF Chemiefarma NV, Straatweg 2, 3604, BB Maarssen, the Netherlands ;3.Department of Pharmacy, Slotervaart Hospital, Louwesweg 6, 1066, EC Amsterdam, the Netherlands ;4.Department of Medical Microbiology, Slotervaart Hospital, Amsterdam ; |