1 Department of Anesthesia, Perioperative Medicine and Pain Management, Dalhousie University, Nova Scotia Health Authority, Halifax, NS, Canada. v.uppal@dal.ca.
2 Women's Obstetric Anesthesia, IWK Health Centre, Halifax, NS, Canada. v.uppal@dal.ca.
3 Women's Obstetric Anesthesia, IWK Health Centre, Halifax, NS, Canada.
4 Faculty of Education, Mount Saint Vincent University, Halifax, NS, Canada.