[1] Department of Diagnostic Bacteriology,
[2] St. Mary's Hospital,undefined
[3] London W2 N1Y,undefined
[4] UK e-mail: drguyot@compuserve.com.uk,undefined
[5] ,undefined
[6] Department of Cardiology,undefined
[7] St. Mary's Hospital,undefined
[8] London W2 N1Y,undefined
[9] UK,undefined
[10] Respiratory and Systemic Infection Laboratory,undefined
[11] PHLS Central Public Health Laboratory,undefined
[12] Colindale,undefined
[13] London,undefined
[14] UK,undefined
[15] Department of Diagnostic Bacteriology,undefined
[16] St. Mary's Hospital,undefined
[17] London W2 N1Y,undefined
[18] UK,undefined
[19] Laboratory for Hospital Infection,undefined
[20] PHLS Central Public Health Laboratory,undefined
[21] Colindale,undefined
[22] London,undefined
[23] UK,undefined
[24] Respiratory and Systemic Infection Laboratory,undefined
[25] PHLS Central Public Health Laboratory,undefined
[26] Colindale,undefined
[27] London,undefined
[28] UK,undefined