For example , the Addis Ababa Fistula Hospital has medical staff without formal degrees .
One of Addis Ababa Fistula Hospital 's top surgeons was illiterate , staff she had been trained over years and now regularly successfully performs fistula surgery .
For example , the Addis Ababa Fistula Hospital has medical staff without formal degrees , and one of its top surgeons was illiterate , but she had been trained over years and now regularly successfully performs fistula surgery .