title: [Amniocentesis--early or late during pregnancy?].
authors.forename: Mirosław
authors.initials: M
authors.lastname: Wielgoś
mesh_terms: D000649:Amniocentesis / Q000009:adverse effects; D005260:Female; D006801:Humans; D011247:Pregnancy; D012307:Risk Factors; D013997:Time Factors