急求文献两篇，谢谢大家！

zwl8632767

Artificial niche microarrays for probing single stem cell fate in high throughput
: H2 f% |" W' j; w+ ~/ u0 P0 m9 ihttp://www.nature.com/nmeth/journal/v8/n11/full/nmeth.1732.html
: b$ L9 T7 m/ |+ S
! ~; Y0 w' n& j$ h: GInvestigating conversion of mechanical force into biochemical signaling in three-dimensional chondrocyte cultures- z% s4 |7 Y! f8 n6 i) j
http://www.nature.com/nprot/journal/v4/n6/full/nprot.2009.63.html