title: A hypokalemic child with paralysis and heart block.
mesh_terms: D002675:Child, Preschool; D004562:Electrocardiography; D006327:Heart Block / Q000209:etiology*; D006801:Humans; D007008:Hypokalemia / Q000150:complications*; D008297:Male; D010243:Paralysis / Q000209:etiology*