?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Nava&rft.au=Nava%2C+A&rft.aufirst=A&rft.date=12+July+2017&rft.atitle=New+regression+formula+to+estimate+the+prenatal+crown+formation+time+of+human+deciduous+central+incisors+derived+from+a+Roman+Imperial+sample+(Velia%2C+Salerno%2C+Italy%2C+I-II+cent.+CE)&rft.volume=12&rft.issue=7&rft.title=PLOS+ONE&rft.issn=1932-6203&rft.genre=article