1. Sector haemorrhage-a probable acute ischaemic disc change in chronic simple glaucoma;SM, I.Drance; IS, Begg;Can J Ophthalmol,1970
2. Ischaemic optic neuropathy in chronic simple glaucoma;Begg, I.S.; Drance, S.M.; Sweeney, V.P.;Br J Ophthalmol,1971
3. Progress of the glaucomatous process related to recurrent ischaemic changes at the optic disc;Begg, I.S.; Drance, S.M.;Exp Eye Res,1971
4. The importance of disc hemorrhage in the prognosis of chronic open angle glaucoma;Drance, S.M.; Fairclough, M.; Butler, D.M.; Kottler, M.S.;Arch Ophthalmol,1977
5. Studies of factors involved in the production of low tension glaucoma;Drance, S.M.; Sweeney, V.P.; Morgan, R.W.; Feldman, F.;Arch Ophthalmol,1973