[1] Dalhousie Univ, Dept Psychol & Neurosci, Halifax, NS, Canada
[2] IWK Hlth Ctr, Halifax, NS B3K 6R8, Canada
[3] Dalhousie Univ, Dept Pediat, Halifax, NS, Canada
[4] Univ Ottawa, Sch Nursing, Ottawa, ON, Canada
[5] Dalhousie Univ, Dept Nursing, Halifax, NS, Canada
[6] Dalhousie Univ, Dept Psychiat, Halifax, NS, Canada
[7] Dalhousie Univ, Dept Anesthesia, Halifax, NS, Canada