. Author manuscript; available in PMC: 2015 Jan 27.
Published in final edited form as: FEMS Immunol Med Microbiol. 2002 Nov 15;34(3):187–191. doi: 10.1111/j.1574-695X.2002.tb00623.x
© 2002 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.