Sources:
- https://www.clinicaltrialsarena.com/analysis/featureclinical-trial-patient-recruitment/
- https://forteresearch.com/news/infographic/patient-recruitment-enrollment-clinical-trials-infographic/
- http://cctawareness.org/about-us/
- http://www.appliedclinicaltrialsonline.com/protocol-complexity
- https://www.quanticate.com/blog/clinical-trial-outsourcing-and-research-trends
- https://acrpnet.org/2020/01/14/leave-no-site-behind-how-sites-sponsors-and-cros-can-speed-clinical-research-together/
- https://www.clinicaltrialsarena.com/analysis/featureclinical-trial-patient-recruitment/
