Cold agglutinins, Eaton agent, and respiratory infections of children.
D000906:Antibodies; D002675:Child, Preschool; D003168:Complement Fixation Tests; D006801:Humans; D007223:Infant; D007827:Laryngitis / Q000209:etiology; D009174:Mycoplasma; D011014:Pneumonia / Q000209:etiology; D011024:Pneumonia, Viral / Q000209:etiology; D012141:Respiratory Tract Infections / Q000209:etiology*; D013290:Streptococcal Infections
D000906:Antibodies