TY JOUR TI EXPERIENCE OF SURGICAL TREATMENT OF PROLIFERATIVE DIABETIC RETINOPATHY KW diabetes mellitus KW proliferative diabetic retinopathy KW vitrectomy KW silicone oil KW Lucentis JO Acta biomedica scientifica AU Kazennov, A.. AU Kanyukov, V.. AU Trubina, O.. AU Kazennova, I.. PY 2016 IS 1 PB Scientific Center for Family Problems and Human Reproduction