“…There were 7 studies covering 2 topics each [3,13,14,15,16,17,18] and 7 meta-analyses [19,20,21,22,23,24,25]. 20 studies (29.4%) were from Europe [3,5,9,10,11,12,15,22,26,27,28,29,30,31,32,33,34,35,36,37,38,] 20 from the US [4,14,17,19,20,24,39,40,41,42,43,44,45,46,47,48,49,50,51,52], 3 studies (4.4%) from US plus Europe [23,53,54], 6 studies (8.8%) from Japan [16,55,56,57,58,59], 6 studies (8.8%) from China [18,25,60,61,62,63], 2 studies (3.0%) from Hong Kong [13,64,65], 3 studies (4.4%) from Canada [66,67,68], 3 studies (4.4%) from India [21,69,70] and 5 studies (7.4%) from other countries [7,71,72,73,74]. 21 studies (30.9%) used the National Cancer Institute - Common Terminology Criteria for Adverse Events (NCI-CTCAE) scale for assessment of OM.…”