THE ANTIGENIC COMPLEX OF STREPTOCOCCUS HAEMOLYTICUS : I. DEMONSTRATION OF A TYPE-SPECIFIC SUBSTANCE IN EXTRACTS OF STREPTOCOCCUS HAEMOLYTICUS.

THE ANTIGENIC COMPLEX OF STREPTOCOCCUS HAEMOLYTICUS : I. DEMONSTRATION OF A TYPE-SPECIFIC SUBSTANCE IN EXTRACTS OF STREPTOCOCCUS HAEMOLYTICUS.