I was adjuged/ranked  the 33rd ranked scientist in KNUST, 142nd ranked in Ghana community of Scientist and ranked 4768 in Africa and 355363  scientist in the world  by the The AD Scientific Index (Alper-Doger Scientific Index) in 2021

Source:

https://www.adscientificindex.com/?subject=Medical+and+Health+Sciences+%2F+Epidemiology+and+Public+Health&q=appiah+seth+christopher