TY - JOUR T1 - Xg groups and sex chromosome abnormalities in people of northern European ancestry: an addendum. JF - Journal of Medical Genetics JO - J Med Genet SP - 210 LP - 211 DO - 10.1136/jmg.14.3.210 VL - 14 IS - 3 AU - R Sanger AU - P Tippett AU - J Gavin AU - P Teesdale AU - G L Daniels Y1 - 1977/06/01 UR - http://jmg.bmj.com/content/14/3/210.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -