Authors’ contributions {31b}
RA, AD
RECRUITMENT
AC conceived of the study. AC and AL contributed to the study design and procedures for each aspect of the trial protocol. AL and AC drafted the study protocol with significant contributions from AD, BS, AS, RG, RA, BL, and BE. All listed authors contributed to the design of study procedures, which included recruitment strategies and data collection procedures. AD, lead statistician, contributed to the study design, sample size estimates, and analytic plan. All protocol authors reviewed, edited, and approved the final protocol. Authorship eligibility for this protocol and for subsequent publications will adhere to the International Committee of Medical Journal Editors (ICMJE) guidelines. The authors read and approved the final manuscript. 