RT Journal Article SR Electronic T1 Sex chromatin and the biological effects of triploidy. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 151 OP 151 DO 10.1136/jmg.14.2.151 VO 14 IS 2 A1 U Mittwoch YR 1977 UL http://jmg.bmj.com/content/14/2/151.1.abstract AB