RT Journal Article SR Electronic T1 Sibship (21q21q) Translocation Down's Syndrome with Maternal Transmission JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 371 OP 375 DO 10.1136/jmg.10.4.371 VO 10 IS 4 A1 Furbetta, M. A1 Falorni, A. A1 Antignani, P. A1 Cao, A. YR 1973 UL http://jmg.bmj.com/content/10/4/371.abstract AB A family is reported with eight cases of Down's syndrome and four abortions in a sibship. The cytogenetic studies showed that the mother was a (21q21q) translocation carrier. Two living children were examined and were found to be cases of Down's syndrome with a (21q21q) translocation.