source: A historian has stated that " it was quinine's effectiveness that gave colonists fresh opportunities to move somewhere in large numbers into the Gold Coast, Nigeria and other parts of west Africa'.
target: A historian has stated that " it was quinine's efficacy that gave colonists fresh opportunities to swarm into the Gold Coast, Nigeria and other parts of west Africa ".
references: A historian has stated that " it was quinine's efficacy that gave colonists fresh opportunities to swarm into the Gold Coast, Nigeria and other parts of west Africa ". A historian has said that " it was quinine's efficacy that gave colonists opportunities to swarm into the Gold Coast, Nigeria and other parts of west Africa ". A historian has stated that " it was quinine's efficacy that gave colonists fresh opportunities to swarm into the Gold Coast, Nigeria and other parts of west Africa ". A historian has said that " it was quinine's potency that gave colonists fresh options to move as large numebrs into the Gold Coast, Nigeria and other parts of west Africa ". A historian has stated that " it was quinine's effectiveness that gave colonists fresh opportunities to pack into the Gold Coast, Nigeria and other parts of west Africa ". A historian said, " it was quinine's efficacy that gave colonists fresh opportunities to swarm into the Gold Coast, Nigeria, and other parts of West Africa . " A historian said, " it was quinine's efficacy that gave colonists fresh opportunities to swarm into the Gold Coast, Nigeria and other parts of west Africa . "