“…Twenty-seven studies [ 14 , 23 – 25 , 30 – 52 ] with a variety of qualitative study designs, such as focus groups and individual interviews, videotaped studies, literature reviews, opinion of experts and mixed studies were included in this review. Of these studies, 12 included complementary providers [ 35 – 42 , 48 , 50 – 52 ], 5 included oncology experts (doctors and nurses) [ 24 , 25 , 43 , 44 , 46 ] and 11 included physicians [ 14 , 23 , 30 – 34 , 45 , 47 , 49 , 52 ].…”