[Distribution and activity of beta-hemolytic streptococci in newly formed communities. 1. The role of streptococci as the pathogen in acute respiratory diseases].
D006801:Humans; D012120:Respiration Disorders; D012141:Respiratory Tract Infections; D013290:Streptococcal Infections; D013291:Streptococcus
RESPIRATORY TRACT INFECTIONS; STREPTOCOCCAL INFECTIONS