RT Journal Article SR Electronic T1 Inheritance of a ring 14 chromosome JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 158 OP 158 DO 10.1136/jmg.19.2.158 VO 19 IS 2 A1 Roland Walbaum YR 1982 UL http://jmg.bmj.com/content/19/2/158.1.abstract AB