1. The validity of the extension-rotation test as a clinical screening procedure before neck manipulation: a secondary analysis;Cote;Journal of Manipulative and Physiological Therapeutics,1996
2. Manipulation of the cervical spine: risks and benefits;Di Fabio;Physical Therapy,1999
3. Is there a role for premanipulative testing before cervical manipulation?;Licht;Journal of Manipulative and Physiological Therapeutics,2000