Dhar, A., Close, H., Hancock, H., Maier, R., Wilson, D., Mason, J.M., Vishwanath, Y.K.S., Rees, C., Dwarakanath, D., "Biodegradable stent or balloon dialation for benign oesophageal stricture: pilot randomised controlled trial", World Journal of Gastroenterology, 2014