[Research in primary care. The clinical trial and observational studies of pharmaceutical products]. Gómez de la Cámara A. Aten Primaria. 1999 Oct 31;24(7):431-5. PMID: 10592553
Proceedings of the University of Pennsylvania annual conference on statistical issues in clinical trials: emerging statistical issues in the conduct and monitoring of clinical trials. Ellenberg JH, Ellenberg SS. Clin Trials. 2012 Dec;9(6):669-70. doi: 10.1177/1740774512463178. PMID: 23250941
The clinical trial design. Naqvi HA. J Coll Physicians Surg Pak. 2014 Apr;24(4):221-3. doi: 04.2014/JCPSP.221223. PMID: 24709230
Editorial: a classification system for protocol deviations in clinical trials. Wolf GT, Makuch RW. Cancer Clin Trials. 1980;3(2):101-3. PMID: 7428134