1. Cotton PB. Endoscopic methods for relief of malignant obstructive jaundice. World J Surg. 1984;8(6):854–61.
2. Deviere J, Baize M, de Toeuf J, et al. Long-term follow-up of patients with hilar malignant stricture treated by endoscopic internal biliary drainage. Gastrointest Endosc. 1988;34(2):95–101.
3. Soehendra N, Reynders-Frederix V. Palliative bile duct drainage—a new endoscopic method of introducing a transpapillary drain. Endoscopy. 1980;12(1):8–11.
4. Speer AG, Cotton PB, Russell RC, et al. Randomised trial of endoscopic versus percutaneous stent insertion in malignant obstructive jaundice. Lancet. 1987;2(8550):57–62.
5. Schmassmann A, von Gunten E, Knuchel J, et al. Wallstents versus plastic stents in malignant biliary obstruction: effects of stent patency of the first and second stent on patient compliance and survival. Am J Gastroenterol. 1996;91(4):654–9.