Associate Professor Christian Girgis is an endocrinologist and a clinician researcher with a strong interest in osteoporosis, metabolic bone disorders and vitamin D. After completing a PhD in molecular biology at the Garvan institute of medical research, he undertook an NHMRC Peter Doherty Postdoctoral Fellowship at the Westmead Institute for Medical Research and a visiting scholarship at the Salk Institute of Biological Studies USA. A/Prof Girgis runs the Osteoporosis and Metabolic Bone Disorders service at Westmead Hospital and leads an active research program in musculoskeletal disorders and osteoporosis therapies.