A study of recurrent bronchitis in childhood.
D000293:Adolescent; D001249:Asthma / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D001824:Body Constitution; D001991:Bronchitis / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008131:London; D008297:Male; D012140:Respiratory Tract Diseases / Q000150:complications*; D012882:Skin Tests; D009626:Terminology as Topic; D014777:Virus Diseases / Q000150:complications*