求文献

henryjia

3 X& [' d$ C1 P0 @+ u1 J
8 {8 m# p: c0 A  _HERE YOU ARE FOR 2 OF THEM. 6 h/ M, n4 k: P1 A' c% K0 P

2 ^9 O1 B# B, [8 C% l6 x, ^The  third paper has no PDF version, here is the full text linkage:
$ V7 p* b: r; a1 {( ehttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC2847339/5 a  p' z, Q" `) r  \, n; k

& I, E" L# b. s8 ~- k, d4 yor8 Y( g7 f) a* D) U7 ]
http://www.ncbi.nlm.nih.gov/pmc/ ... 7339/?report=reader
" R3 _. J6 u$ c7 [7 F0 y0 G# f" g3 M+ w4 Z; I
Good luck!