PT - JOURNAL ARTICLE AU - JD Williams TI - Medical Microbiology AID - 10.1136/jcp.38.7.844 DP - 1985 Jul 01 TA - Journal of Clinical Pathology PG - 844--844 VI - 38 IP - 7 4099 - http://jcp.bmj.com/content/38/7/844.short 4100 - http://jcp.bmj.com/content/38/7/844.full SO - J Clin Pathol1985 Jul 01; 38