1. A manual of systemaic eyelid surgery;Collin, J.R.O.,1989
2. Senile ptosis - introduction and anterior approach. Trans Ophkthalmol Soc UK;Tyers, A.G.; Collin, J.R.O.,1984
3. Senile ptosis - posterior approach and complications. Trans Ophthabnol Soc UK;Collin, J.R.O.; Tyers, A.G.,1984
4. Surgical treatment of eyelid retraction associated with thyroid eye disease;Older, J.J.;Ophthalmic Surg,1991
5. Treatment of ptosis by levator resection with adjustable sutures via the anterior approach;Hyklema, H.A.; Koornneef, L.;BrJ Ophthalmol,1989