?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Jaffe%2C+Rachel&rft.aulast=Jaffe&rft.aufirst=Rachel&rft.degree=Master+Essay&rft.date=15+December+2019&rft.title=Social+media's+effect+on+vaccination+rates&rft.inst=University+of+Pittsburgh&rft.tpages=34