Chatziralli I, Dimitriou E, Theodossiadis G, Bourouki E, Bagli E, Kitsos G, Theodossiadis P. Intravitreal ranibizumab versus vitrectomy for recurrent vitreous haemorrhage after pars plana vitrectomy for proliferative diabetic retinopathy: a prospective study. International ophthalmology. 2020;40:841–847.