title: Cold agglutination--positive pneumonia.
mesh_terms: D000906:Antibodies / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D003080:Cold Temperature; D006801:Humans; D007223:Infant; D011014:Pneumonia / Q000150:complications / Q000209:etiology / Q000276:immunology*
chemical_list: D000906:Antibodies