1Watts P, Ram AR, Nair R, et al. Comparison of external dacryocystorhinostomy and 5-fluorouracil augmented endonasal laser dacryocystorhinostomy. A retrospective review[J]. Indian J Ophthalmol,2001,49(3): 169-172.
3Cokkeser Y, Evereklioglu C, Er H. Comparative external versus endoscopic dacryocystorhinostomy: results in 115 patients (130 eyes) [J]. Otolaryngol Head Neck Surg, 2000,123 (4) :488-491.
4Onerci M, Orhan M, Ogretmenoglu O, et al. Long-term results and reasons for failure of intranasal endoscopic dacryocystorhinostomy [J]. Acta Otolaryngol, 2000,120 (2) : 319-322.
7Banares R, Albillos A, Rinc6n D, et al. Endoscopic treatment versus endoscopic plus pharmacologic treatment for acute variceal bleeding: a meta-analysis[J]. Hepatology, 2002,35 (3) : 609-615.
