International Ophthalmology Clinics, Volume 30, Number 1, 54-57, 1990
Pizzarello D, Louis, and Sheffield M, Victoria. “ Training Health Care Workers In Ophthalmic Care: The Experience Of Helen Keller International,”
Pizzarello D, Louis, and Sheffield M, Victoria. “ Training Health Care Workers In Ophthalmic Care: The Experience Of Helen Keller International,”