title: Multiple births in Igbo women.
mesh_terms: D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009549:Nigeria; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011446:Prospective Studies; D011783:Quadruplets; D014310:Triplets; D014427:Twins