Funding for this research was provided by:
Canadian Institutes of Health Research (PJT-148876)
Text and Data Mining valid from 2019-05-20
Received: 31 March 2019
Accepted: 3 May 2019
First Online: 20 May 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Human Research Ethics Board at the University of Manitoba [HS20653(H2017:097)], Canada, the Ethical Review Committee of the Sociological Association of Ukraine, and the Committee on Medical Ethics of the L. Gromashevsky Institute of Epidemiology and Infectious Diseases at the National Academy of Medical Sciences of Ukraine. All participants provided written informed consent. Participants under 16 years of age were considered mature minors and provided consent to take part in the study without consent from their parent or guardian. This was approved by the local ethics committees.
: Not applicable.
: The authors declare that they have no competing interests.
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