RT Journal Article SR Electronic T1 The Normal and Abnormal Unipolar Electrocardiogram in Infants and Children JF The Journal of the College of General Practitioners JO J Coll Gen Pract FD British Journal of General Practice SP 132 OP 132 VO 7 IS 1 YR 1964 UL http://bjgp.org/content/7/1/132.1.abstract AB