RT Journal Article SR Electronic(1)YR 1979 T1 Proceedings of the Pathological Society of Great Britain and Ireland JF Journal of Medical Microbiology, VO 12 IS 4 SP Pxv OP Pxvi DO https://doi.org/10.1099/00222615-12-4-Pxv PB Microbiology Society, SN 1473-5644, AB , UL https://www.microbiologyresearch.org/content/journal/jmm/10.1099/00222615-12-4-Pxv