FIRST-DEGREE HEART BLOCK ASSOCIATED WITH THYROTOXICOSIS.
D044383:Black People; D004562:Electrocardiography; D006327:Heart Block; D006801:Humans; D006980:Hyperthyroidism; D007454:Iodides; D013971:Thyrotoxicosis
D007454:Iodides
ELECTROCARDIOGRAPHY; HEART BLOCK; HYPERTHYROIDISM; IODIDES; NEGROES