TY - GEN AU - Flannery,D B AU - Holzman,G B TI - Prenatal testing and twinning SN - 0009-9163 PY - 1985///1119 KW - Humans KW - Maternal Age KW - Prenatal Diagnosis KW - Twins N1 - Publication Type: Letter UR - https://doi.org/10.1111/j.1399-0004.1985.tb00383.x ER -