?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Pers&rft.aufirst=M.+van+der&rft.au=Pers%2C+M.+van+der&rft.degree=Master&rft.title=Being+pregnant+and+displaced%3A+does+self+efficacy+matter+to+go+safely+through+pregnancy+and+delivery%3F&rft.date=2007