[Distribution of beta hemolytic group streptococci isolated during the period of 1973-1977].
D006801:Humans; D013290:Streptococcal Infections / Q000382:microbiology*; D013291:Streptococcus / Q000302:isolation & purification*
Distribucija grupa beta hemoliticnih streptokoka izolovanih u periodu od 1973-1977 godine.