Surveillance of acute respiratory infections in three kindergartens in Beijing.
Zeng
D L
DL
Zhang
Z J
ZJ
Wang
Z L
ZL
Zhang
J N
JN
Yang
M L
ML
D001991:Bronchitis / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D002681:China; D015331:Cohort Studies; D003139:Common Cold / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007223:Infant; D007251:Influenza, Human / Q000453:epidemiology; D008297:Male; D011014:Pneumonia / Q000453:epidemiology*; D014777:Virus Diseases / Q000453:epidemiology