▪ “About one - third of girls in the United States get pregnant before age 20. ” ​ — CENTERS FOR DISEASE CONTROL AND PREVENTION, U.S.A.
▪ “Khoảng 1 / 3 thiếu nữ ở Hoa Kỳ mang thai trước tuổi 20 ”. — CENTERS FOR DISEASE CONTROL AND PREVENTION, HOA KỲ.