Funding for this research was provided by:
National Cancer Institute (CA058420, CA164974, CA151135)
Received: 21 May 2020
Accepted: 19 August 2020
First Online: 4 September 2020
Ethics approval and consent to participate
: The study protocol was approved by the Boston University Institutional Review Board. Consent to participate was implied by return of the baseline questionnaire.
: Not applicable.
: The authors declare that they have no competing interests.