Roberts, K. J., McCulloch, N., Sutcliffe, R., Isaac, J., Muiesan, P., Bramhall, S., . . . Mahon, B. S. (2013). Endoscopic ultrasound assessment of lesions of the ampulla of Vater is of particular value in low-grade dysplasia. Blackwell Publishing Ltd.

Roberts, Keith J., Neil McCulloch, Rob Sutcliffe, John Isaac, Paolo Muiesan, Simon Bramhall, Darius Mirza, Ravi Marudanayagam, και Brinder S. Mahon. Endoscopic Ultrasound Assessment of Lesions of the Ampulla of Vater Is of Particular Value in Low-grade Dysplasia. Blackwell Publishing Ltd, 2013.

Roberts, Keith J., et al. Endoscopic Ultrasound Assessment of Lesions of the Ampulla of Vater Is of Particular Value in Low-grade Dysplasia. Blackwell Publishing Ltd, 2013.