RT Journal Article SR Electronic T1 Physical mapping JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP S77 OP S77 DO 10.1136/jmg.35.Suppl_1.S77 VO 35 IS Suppl 1 YR 1998 UL http://jmg.bmj.com/content/35/Suppl_1/S77.abstract AB