TY - JOUR T1 - Xg groups and sex abnormalities in people of northern European ancestry. JF - Journal of Medical Genetics JO - J Med Genet SP - 417 LP - 426 DO - 10.1136/jmg.8.4.417 VL - 8 IS - 4 AU - R Sanger AU - P Tippett AU - J Gavin Y1 - 1971/12/01 UR - http://jmg.bmj.com/content/8/4/417.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -