Text and Data Mining valid from 2020-02-05
Received: 28 September 2017
Accepted: 21 January 2020
First Online: 5 February 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of the Sunnybrook Health Sciences Centre. Reference number of the approved REB is 265–2015.
: The authors declare that they have no competing interests.