1. An essay on the shaking palsy;Parkinson,1817
2. Clinically relevant designs for rehabilitation research: the idiographic model;Ottenbacher;Am J Phys Med Rehabil.,1990
3. Writing case reports: a how-to manual for clinicians;McEwen,1996
4. Case Study Research: Designs and Methods;Yin,1994
5. Foundations of Clinical Research: Applications to Practice;Portney,1993