Reply of the authors.
Instituto Valenciano de Infertilidad, Universidad de Valencia, Valencia, Spain.
José
J
Bellver
Instituto Valenciano de Infertilidad, Universidad de Valencia, Valencia, Spain.
Vicente
V
Serra
D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011266:Pregnancy-Associated Plasma Protein-A / Q000032:analysis*; D011296:Prenatal Diagnosis; D027724:Reproductive Techniques, Assisted / Q000009:adverse effects*
D011266:Pregnancy-Associated Plasma Protein-A