title: Blood velocity waveforms and placental vascular formation.
mesh_terms: D000500:Allylestrenol / Q000627:therapeutic use*; D001783:Blood Flow Velocity; D004963:Estrenes / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D010920:Placenta / Q000098:blood supply*; D011247:Pregnancy; D011673:Pulsatile Flow; D012039:Regional Blood Flow
chemical_list: D004963:Estrenes; D000500:Allylestrenol