[Distribution of Streptococcus pyogenes species in the German Democratic Republic].
D005859:Germany, East; D006801:Humans; D013290:Streptococcal Infections / Q000453:epidemiology*; D013297:Streptococcus pyogenes / Q000145:classification / Q000302:isolation & purification*
Typenverteilung des Streptococcus pyogenes in der DDR 1964/1965.