Vulture poisoning in Sub-Saharan Africa and its implications for conservation planning: A systematic review oleh Vincent Raphael Nyirenda, Bimo Abraham Nkhata, Darius Phiri, Wilfred Nyirenda, Daniel Nyamphande Phiri, Mary Malasa, Matthew Smith Becker, Enala Mwase Tembo, Moses Amos Nyirenda, Twakundine Simpamba, Jacob Mwitwa, Chansa Chomba