The incidence of twins and their stillbirth rate over the last hundred years in the Negro population of Antigua.
D000958:Antigua and Barbuda; D001699:Biometry; D044383:Black People; D005260:Female; D006801:Humans; D015994:Incidence; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000706:statistics & numerical data*; D050497:Stillbirth; D014427:Twins
NEGROES; STILLBIRTH/statistics; TWINS