1. Soft tissue infection after open lacrimal surgery;Walland, M.J.; Rose, G.E.;Ophthalmology,1994
2. Results of dacryocystorhinostomy: analysis of causes for failure. Trans Ophthalmol Soc UK;Welham, R.A.N.; Henderson, P.H.,1973
3. Management of unsuccessful lacrimal surgery;Welham, R.A.N.; Wulc, A.E.;BrJ Ophthalmol,1987
4. Dacryocystorhinostomy failure;Rosner, M.; Rosen, N.;Ophthalmic Surg,1990
5. Dacryocystorhinostomy failure: association with nasolacrimal silicone intubation;Allen, K.; Berlin, A.J.;Ophthalmic Surg,1989