“…[7][8][9][14][15][16][17][18]20 Three studies were conducted in a dizziness clinic or balance center, 10,12,13 1 study was conducted in a rehabilitation center, 19 and in another study treatment was carried out by family physicians. 11 Concomitant therapy, namely, postural restrictions or a soft cervical collar, were prescribed for all patients in 5 studies, 7,13,17,18,20 whereas in 3 studies none of the included patients received concomitant therapy. 10,11,19 In 4 studies, only a part of the included patients received postural restrictions or a soft collar, 8,9,12,16 and 2 studies did not mention whether patients received concomitant treatment.…”