Dear All Please help me in getting these articles · Quality control of validity of data collected in clinical trials <http://www.sciencedirect.com/science/article/pii/0277537989904215> · *European Journal of Cancer and Clinical Oncology, Volume 25, Issue 8, August 1989, Pages 1241-1247* · K. Vantongelen, N. Rotmensz, E. Van Der Schueren · 191 Quality assurance in clinical trials: a necessary evil for all of us? <http://www.sciencedirect.com/science/article/pii/S0167814001803327> · *Radiotherapy and Oncology, Volume 58, Supplement 1, January 2001, Page S56* Regards *Muhammed Najeeb. V* *Librarian, Health Science Library,NGHA Riyadh, POB 22490, KSA najeebmankada@gmail.com -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.