Behavioral medicine: a guide for clinical practice / Mitchell D. Feldman,
The craft of research / Wayne C. Booth, Gregory G. Colomb, Joseph M. Williams
Knowledge to action: evidence based health care in context / edited by Sue Dopson and Louise Fitzgerald.
Wiley encyclopedia of clinical trials / edited by Ralph D'Agostino, Lisa Sullivan, Joseph Massaro.
Randomized controlled trials: questions, answers, and musings / Alejandro R. Jadad, Murray W. Enkin.