Methods
We searched the trials registers of the Cochrane Stroke Group (March 2010), the Cochrane Complementary Medicine Field (March 2010), and the Cochrane Rehabilitation and Related Therapies Field (March 2010); MEDLINE (1966 to March 2010); AMED (1985 to March 2010); EMBASE (1980 to March 2010); CINAHL (1982 to March 2010); the Physiotherapy Evidence Database (PEDro; March 2010); and the Cochrane Central Register of Controlled Trials (CENTRAL; The Cochrane Library 2010, Issue 1). In an effort to identify other published, unpublished, and ongoing trials, we searched ongoing trial registers, reviewed reference lists, and contacted relevant professional organizations.