求几篇文献，在pubmed上只找到摘要

qianqianhaixiao

Development of a serum-free system to expand dental-derived stem cells: PDLSCs and SHEDs.
6 a) y( F( V, ?  F1 HMorphological characterization of periodontium-derived human stem cells.- K: }6 g" D2 `: E# \. g1 ]
Osteogenic differentiation of stem cells derived from human periodontal ligaments and pulp of human exfoliated deciduous teeth.
( @$ `7 {) W, BIsolation of multipotent stem cells from adult rat periodontal ligament by neurosphere-forming culture system.
; n- l' X9 \; J! \& xChemical structure and immunomodulating activities of peptidoglycan from Actinobacillus actinomycetemcomitans].+ H9 k- f  n2 S
希望能得到好心人的帮助，获得全文
6 h! u$ M5 M) f" G0 ?% T0 G( C; v

qianqianhaixiao

万分感谢

qianqianhaixiao

第三篇和第四篇，我下不了哦