1 Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Canada.
2 Division of Plastic Surgery, Department of Surgery, McMaster University, Hamilton, Canada.
3 Division of Thoracic Surgery, Department of Surgery, McMaster University, Hamilton, Canada.
4 Division of Plastic Surgery, Department of Surgery, McMaster University, Hamilton, Canada; Department of Health Research Methods, Evidence and Impact (HEI), McMaster University, Hamilton, Canada. Electronic address: athoma@mcmaster.ca.