1. Selection of group A streptococci rich in M protein from population poor in M protein;Becker;Amer. J. Pathol.,1964
2. Binding of aggregated IgG to nephritogenic type 12 streptococci: influence of serum, CI and C4;Christensen;Acta path, microbiol. scand. Sect. C,1977
3. Binding of aggregated IgG in the presence of fresh serum by group A streptococci producing pharyngeal infection: possible connection with types frequently involved in acute nephritis;Christensen;Acta path, microbiol. scand. Sect. B,1978
4. Dillon , H. C. Jr. Nephritogenic serotypes of recognized importance Alman , P. L. Katz , D. D. 1978
5. Differentiation of group A streptococci with a common R antigen into three serological types, with special reference to the bactericidal test;Lancefield;J. Exper. Med.,1957