Associate Professor Charles Siles graduated in Medicine from Melbourne University in 1984. He then specialized as an Obstetrician and Gynecologist and practiced for many years. He also sub-specialised in Sonology as an Ultrasound specialist. His ultrasound training commenced in Sydney and was completed at Oxford and King's College London, where he worked with Professor Nicolaides (founder of the Nuchal Translucency Fetal Maternal Medicine Foundation). Dr. Siles worked with Professor Nicolaides during the world-recognized Down Syndrome screening program development. During its developmental phase, Dr. Siles also spent time in Spain (Valencia) working on the 3D/4D ultrasound prototype. He has also worked in Seattle, Washington, in Fetal Maternal Medicine. While in Sydney, Dr. Siles also completed qualifications in Bioethics and was awarded a Fellow of the College of Legal Medicine as a founding member.