Dr. Stephenson attended medical school and internal medicine training at the University of Toronto. She completed her training in Respiratory Medicine at the University of British Columbia in Vancouver in 2000 and has been working at St. Michael's Hospital in the Division of Respirology since 2001. In 2010 she successfully completed her PhD in Clinical Epidemiology at the University of Toronto. In addition to her clinical work as an adult CF Respirologist, Dr. Stephenson is a Clinician Scientist at St. Michael's Hospital doing epidemiological research in CF using large, pre-existing databases such as national CF registry data and health administrative databases. At Cystic Fibrosis Canada, she is the Director of the Canadian CF Registry which records important clinical data on all Canadians with CF across the country. Dr. Stephenson has a particular interest in survival methodology and has led several international CF collaborations. She is also a member of the International Harmonization of CF Registries Committee which was formed to standardize data captured within national CF registries and to facilitate international comparisons.