Kwiecińska , A., and M. Woś. “Dacryocystectomy As a Treatment Alternative for Chronic Recurrent Dacryocystitis in Elderly Patients: Case Series Study”. OphthaTherapy. Therapies in Ophthalmology, Vol. 7, no. 2, June 2020, pp. 129-34, doi:10.24292/01.OT.220520.