[ETIOLOGY AND EPIDEMIOLOGY OF ACUTE RESPIRATORY TRACT INFECTIONS].
D000208:Acute Disease; D002648:Child; D004813:Epidemiology; D005858:Germany; D005860:Germany, West; D006801:Humans; D012141:Respiratory Tract Infections
CHILD; EPIDEMIOLOGY; GERMANY, WEST; RESPIRATORY TRACT INFECTIONS
ZUR ATIOLOGIE UND EPIDEMIOLOGIE AKUTER INFEKTE DER LUFTWEGE.