Abnormalities, Human (4) surveillance (3) Europe (3) Europe (3) Pregnancy (3) Population (3) Human beings (3) Europe (3) Population (3) Pregnancy (3) Risk factors (3) risque (2) âge (2) Diagnosis (2) Defects (2) Cases (2) Birth (2) Ci (Chinese poetry) (2) Risk (2) Questionnaires (2) Parturition (2) Microcephaly (2) Labor (Obstetrics) (2) Neural tube--Abnormalities (2) Diseases--Causes and theories of causation (2) Diagnosis (2) Diabetes (2) Defects (2) Childbirth (2) Age (2)