“…Although previous studies have shown a beneficial effect of rehabilitation therapy on facial palsy outcomes, there is some variation in the types of treatments used and in the heterogeneity of the study populations (e.g. difference in etiology of facial palsy) (Barbara et al, 2010;Beurskens andHeymans, 2003, 2006;Manikandan, 2007;Nakamura et al, 2003;Paolucci et al, 2019;Ross, Nedzelski, and McLean, 1991;Segal et al, 1995). Studies from various medical fields such as gynecology, urology, cardiology, orthopedic surgery, and physical therapy reported an association between practice patterns and care provider characteristics (Archer et al, 2009a;Archer, MacKenzie, Castillo, and Bosse, 2009b;Graham, Maddox, Itani, and Hawn, 2013;Hamilton et al, 2012;Harper, Brown, Foster-Rosales, and Raine, 2010;Li and Bombardier, 2001;Mikhail, Korner-Bitensky, Rossignol, and Dumas, 2005).…”