Received: 16 November 2018
Accepted: 6 August 2019
First Online: 13 August 2019
Ethics approval and consent to participate
: This research was approved by the Institutional review board (IRB) of all 3 hospitals (Poona hospital and Research Centre, Ruby Hall Clinic and Noble Hospital, Pune, India) in which the study was conducted. Administrative permissions required to access the raw data were also granted by IRB. It was a retrospective cohort study and hence patients consent to participate was not required.
: Not applicable.
: The authors declare that they have no competing interests.