Schellekens J F, Schouls L M, van Pelt W, Esveld M, van Leeuwen W J
Diagnostic Laboratory for Infectious Diseases and Perinatal Screening, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands.
Neth J Med. 1998 Jun;52(6):209-17. doi: 10.1016/s0300-2977(98)00034-5.