mistake... Abdel-Salam Al-Drouby Division of Medicine, Section of Microbiology (Immunology) University of Wales College of Medicine Heath Park, Cardiff, UK, CF4 4XN Tel 01222-744724 Fax 01222-751729 W3 URL Dept http://www.cf.ac.uk/uwcm/mm/index.html Personal http://www.cf.ac.uk/uwcm/mm/asa-hp.html