Haji A, Ryan S, Bjarnason I, Donaldson N, Papagrigoriadis S. Colonoscopic high frequency mini probe ultrasound is more accurate than conventional computed tomography (CT) in the local staging of colonic cancer. Colorectal Disease 2012 Aug;14(8):953-9. doi: 10.1111/j.1463-1318.2011.02871.x.
Haji A, Ryan S, Bjarnason I, Papagrigoriadis. High frequency mini probe ultrasound as a useful adjunct in the management of patients with malignant colorectal polyps. Colorectal Disease 2013 Mar; 15(3): 304-8. doi: 10.1111/j.1463-1318.2012.03180.x.
Haji A, Adams K, Papagrigoriadis S. High frequency mini probe ultrasound prior to endoscopic resection of colorectal polyps - is it useful? Accepted Diseases of Colon and Rectum June 2013
Haji A. The role of Positron Emission Tomography in the management of recurrent rectal cancer - a review of the literature. British Journal of Hospital Medicine 2007, Vol. 68: 11, 580 - 583.