[1] Washington State Univ, Elson S Floyd Coll Med, Speech & Hearing Sci, 412 E Spokane Falls Blvd, Spokane, WA 99202 USA
[2] HOPE Sch, Hearing Oral Program Excellence Spokane, 502 E 5th Ave, Spokane, WA 99202 USA
[3] Eastern Washington Univ, Commun Sci & Disorders, 310 North Riverpoint Blvd,Box B, Spokane, WA 99202 USA
[4] Gonzaga Univ, Sch Engn & Appl Sci, Comp Sci, 502 E Boone Ave, Spokane, WA 99258 USA