PT - JOURNAL ARTICLE AU - Mittwoch, Ursula TI - Sex Chromatin AID - 10.1136/jmg.1.1.50 DP - 1964 Sep 01 TA - Journal of Medical Genetics PG - 50--76 VI - 1 IP - 1 4099 - http://jmg.bmj.com/content/1/1/50.short 4100 - http://jmg.bmj.com/content/1/1/50.full SO - J Med Genet1964 Sep 01; 1