Volume 18 Issue 4, August 2021
https://journals.sagepub.com/toc/ctja/18/4
Recruitment and Retention
Effectiveness of participant recruitment strategies for critical care trials: A systematic review and narrative synthesis
Timia Raven-Gregg, Fiona Wood, Victoria Shepherd
First Published February 2, 2021; pp. 436–448
vaccines and global health :: ethics and policy 