"Fetus." . . . . "Melanoblasts and melanocytes in fetal Negro skin"@en . "Melanoblasts and melanocytes in fetal negro skin" . "Melanoblasts and melanocytes in fetal Negro skin" . . . . . . . . . . . . . . . . . . . . . . . . . . "Black race." . . "Chromatophores." . . "Blacks." . . "Embryology, Human." . . "African Continental Ancestry Group." . . . .