TY - JOUR T1 - Sex Chromatin JF - Journal of Medical Genetics JO - J Med Genet SP - 50 LP - 76 DO - 10.1136/jmg.1.1.50 VL - 1 IS - 1 AU - Ursula Mittwoch Y1 - 1964/09/01 UR - http://jmg.bmj.com/content/1/1/50.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -