1. Cytogenetics UnitState Health Laboratory63–79 George StreetBrisbaneQLD4000
2. The Genetic ClinicRoyal Children's HospitalHerston Road
3. Royal Women's HospitalBowen Bridge RoadHerstonQLD4029
4. Cytogenetics UnitOliver Latham LaboratoryPO Box 53, North RydeSydneyNSW2113