reo@cbnews.att.com (robert.e.o'brien) (01/31/91)
I would appreciate any information on the effects of an abnormal chromosone 20 (46xx/-20 isochromosone 20q - 3 longs and one sort, mosaic isochrmosone 20q). Also, I would appreciate any info on the use of magnetic resonance imaging of fetuses to detect birth defects. Sorry if this is cross-posted too widely. Bob O'Brien