The population codes are as follows: ACB, African Caribbean in Barbados; ASW, People with African Ancestry in Southwest USA; CLM, Colombians in Medellín, Colombia; ESN, Esan in Nigeria; GWD, Gambian in Western Division, Mandinka; LWK, Luhya in Webuye, Kenya; MSL, Mende in Sierra Leone; PUR, Puerto Ricans in Puerto Rico; and YRI, Yoruba in Ibadan, Nigeria.