9Gogate P,Deshpande M,Wormald R,et al.Extracapsular cataract surgery compared with manual small incision cataract surgery in community eye care setting in western India:a randomised controlled trial.Br J Opthalmol2003;87(6):667-672.
10Guzek JP,Ching A.Small-incision manual extracapsular cataract surgery in Ghana,West Africa.J Cataract Refract Surg 2003;29(1):57-64.