1. Searching for XYY males through electrocardiograms.
2. The electrocardiogram in males with the 47, XYY karyotype;Steiness;The Lancet,1970
3. Chromosome studies on 3,500 newborn male infants;Ratcliffe;The Lancet,1970
4. The electrocardiogram in males with extra Y chromosomes;Price;The Lancet,1968