Vitreous hemorrhages in proliferative diabetic retinopathy treated with pars plana vitrectomy – own material - Kanclerz, Piotr; Pyrzanowska-Sumiła, Joanna; Murawska, Joanna; Raczyńska, Dorota; Gębka, Andrzej (Klinika Oczna / Acta Ophthalmologica Polonica, 2013)