title: [Neuronal differentiation of PC12 cells induced by human periodontal ligament fibroblast-conditioned medium].
authors.affiliation: Department of Stomatology, General Hospital of PLA, Beijing, China. newxj@hotmail.com
authors.forename: Juan
authors.initials: J
authors.lastname: Xu
authors.forename: Hong-chen
authors.initials: HC
authors.lastname: Liu
authors.forename: Lu-lu
authors.initials: LL
authors.lastname: Xu