The Investigative sites, sponsors, and CROs are usually faced with the two key challenges for the planning and when planning and handling clinical trials: taking patients recruited and identifying how much to use to locate and enroll them.

Reference:
https://thecarecentral.blogspot.com/2020/01/do-patient-recruitment-advertising-and.html

Related posts:
https://www.careclinique.com/blog/what-you-should-look-for-in-a-patient-recruitment-company