title: Investigation of acute idiopathic pulmonary hemorrhage among infants - Massachusetts, December 2002-June 2003.
mesh_terms: D000208:Acute Disease; D016000:Cluster Analysis; D004777:Environment; D018876:Environmental Illness / Q000453:epidemiology; D005658:Fungi; D006469:Hemoptysis / Q000453:epidemiology* / Q000209:etiology; D006470:Hemorrhage / Q000453:epidemiology* / Q000209:etiology; D006486:Hemosiderosis / Q000453:epidemiology / Q000209:etiology; D006798:Housing; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008171:Lung Diseases / Q000453:epidemiology* / Q000209:etiology; D008297:Male; D008404:Massachusetts / Q000453:epidemiology; D014842:von Willebrand Diseases / Q000150:complications / Q000175:diagnosis