“…Gastroscopy was the most commonly studied DA test (27 studies), followed by lower GI endoscopy (proctoscopy, flexible sigmoidoscopy, or colonoscopy, 15 studies), [50][51][52][53][54][55][56][57][58][59][60][61][62][63][64] CT (three studies -two head, one chest), [65][66][67] ultrasound (three studiestwo abdominal, one gynaecological), [68][69][70] MRI (three studies), [71][72][73] X-ray (two studies), 74,75 gastroscopy and lower endoscopy combined (two studies), 76,77 mammogram (one study), 78 mammogram and ultrasound combined (one study), 79 MRI and CT combined (one study), 80,81 transvaginal sonography (one study), 82 and a range of radiological tests including MRI, CT, and barium meal (one study). 83 Fifty-seven studies (95%) reported DA testing performed in a hospital or specialist clinic setting, one utilised a DA test located in primary care, 28 and two did not specify location.…”