?url_ver=Z39.88-2004&rft_id=10.3390%2Fma9040259&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Kirby%2C+Giles&rft.aufirst=Giles&rft.aulast=Kirby&rft.issn=1996-1944&rft.title=Materials&rft.date=2016&rft.issue=4&rft.volume=9&rft.atitle=Microparticles+for+sustained+growth+factor+delivery+in+the+regeneration+of+critically-sized+segmental+tibial+bone+defects&rft.genre=article