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Journal of Medical Microbiology|November 1, 1982
The opacity factor of group-A streptococciG Hallas, J P WiddowsonJournal of Medical Microbiology|February 1, 1983
The relationship between opacity factor and M protein in Streptococcus pyogenesG Hallas, J P WiddowsonEpidemiology and Infection|February 1, 1988
The use of SDS-polyacrylamide gel electrophoresis in epidemiological studies of Corynebacterium diphtheriaeG HallasCaring : National Association for Home Care Magazine|June 7, 1993
Labor pains. Getting a grip on the Americans With Disabilities ActG HallasThe Journal of Hygiene|August 1, 1985
The production of pyrogenic exotoxins by group A streptococciG HallasThe Journal of Hygiene|June 1, 1981
Streptococcal antibodies in patients with burn injuriesJ P Widdowson, P J WormaldClinical and Experimental Immunology|August 1, 1979
Predominance of immunoglobulin G sub-class 3 among the complement-fixing antibodies to streptococcal M-associated proteinG E Mortimer, J P WiddowsonThe Journal of Hygiene|March 1, 1973
Antibody to streptococcal opacity factor in human seraW R Maxted, J P Widdowson, C A FraserJournal of Medical Microbiology|February 1, 1976
Immunological heterogeneity among the M-associated protein antigens of group-A streptococciJ P Widdowson, W R Maxted, A M PinneyPageof 3