The main objective of this thesis was to implement and test the randomized database study, which conceptually should bridge the gap between observational studies and randomzed clinical trials.

Lei, Prof. Dr. J. van der (promotor), Stricker, Prof. Dr. B.H.Ch. (promotor)
J. van der Lei (Johan)
Erasmus University Rotterdam
Erasmus MC: University Medical Center Rotterdam

Mosis, G. (2006, May 3). Randomized database studies: a combination of the strengths of observational studies and randomized clinical trials?. Retrieved from