TY - JOUR T1 - Supernumerary small ring chromosome. JF - Journal of Medical Genetics JO - J Med Genet SP - 488 LP - 488 DO - 10.1136/jmg.15.6.488 VL - 15 IS - 6 AU - M S Lungarotti AU - A Calabro Y1 - 1978/12/01 UR - http://jmg.bmj.com/content/15/6/488.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -