title: Commentary on 'Elm et al'
authors: Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, ON, Canada.
authors: Zainab
authors: Z
authors: Samaan
authors: Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, ON, Canada The Centre for Evaluation of Medicine, Hamilton, ON, Canada System-Linked Research Unit, McMaster University, Hamilton, ON, Canada Department of Anaesthesia, McMaster University, Hamilton, ON, Canada Department of Paediatrics, McMaster University, Hamilton, ON, Canada thabanl@mcmaster.ca.
authors: Lehana
authors: L
authors: Thabane