RT Journal Article SR Electronic T1 Xg blood groups of 78 patients with Klinefelter's syndrome and of some of their parents. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 161 OP 164 DO 10.1136/jmg.5.3.161 VO 5 IS 3 A1 A Froland A1 R Sanger A1 R R Race YR 1968 UL http://jmg.bmj.com/content/5/3/161.abstract AB