Susan Boyd1, Dave Murray2, Donald MacPherson3. 1. Faculty of Human and Social Development, University of Victoria, Victoria, BC, V8W 2Y2, Canada. 2. c/o VANDU, 380 East Hastings Street, Vancouver, BC, V6A 1P4, Canada. 3. Canadian Drug Policy Coalition, Centre for Applied Research in Mental Health and Addictions, Simon Fraser University, #2400 -515 West Hastings Street, Vancouver, BC, V6B 5K3, Canada. Donald_macpherson@sfu.ca.
“Upon publication of the original article [1], it was noticed that there was an error in the last sentence of the first paragraph. The sentence should read: Prior to and following their dose, NAOMI staff observes each participant for adverse effects.”