Monnickendam M A, McEvoy M B, Blake W A, Gaworzewska E T, Hallas G, Tanna A, Efstratiou A, George R C
Public Health Laboratory Service Communicable Disease Surveillance Centre, Central Public Health Laboratory, London, United Kingdom.
Adv Exp Med Biol. 1997;418:87-9. doi: 10.1007/978-1-4899-1825-3_22.