1. Vitrectomy for diabetic retinopathy;Aaberg,1977
2. Closed vitrectomy in diabetic retinopathy;McMeel,1977
3. A new concept for vitreous surgery. 7. Two-instrument techniques in pars plana vitrectomy;Machemer;Arch. Ophthalmol,1974
4. Pars plana vitrectomy for the management of severe diabetic retinopathy;Mandelcorn;Am. J. Ophthalmol,1976
5. Vitrectomy surgery via the pars plana approach at the Medical College of Wisconsin;Aaberg,1976