Upper Gastrointestinal edoscopy at the Korle-Bu Teaching Hospital - Aduful, H.K.; Naaeder, S. B.; Darko, R.; Baako, B. N.; Clegg-Lamptey, J. N. A.; Nkrumah, K. N.; Adu-Aryee, N. A.; M (Ghana Medical Journal 41{1): 12-16, 2007)