[Expectant mothers' return to her parents' homes to give birth--physical symptoms associated with extended travelling].
D036861:Delivery, Obstetric; D005260:Female; D006701:Home Nursing; D006801:Humans; D007564:Japan; D007743:Labor, Obstetric; D010290:Parents; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology*; D014195:Travel