+--------------COMP:V-N(in)--------------+    
      +----------------SUBJ:V-N----------------+        +----------MOD_ATT:N-N----------+    
      +-------COMP:N-N(of)-------+             |        |     +-------MOD_ATT:N-N-------+    
      |           +-MOD_ATT:N-ADJ+             |        |     |      +---MOD_ATT:N-ADJ--+    
      |           |       +MOD_AT+        +-NEG+        |     |      |         +MOD_ATT:+    
      |           |       |      |        |    |        |     |      |         |        |    
 Expression of __SP__ __NODE__ mRNA does not occur in bone marrow derived mononuclear cells .
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__SP__)
MOD_ATT:N-ADJ (mRNA,__NODE__)
SUBJ:V-N (occur,expression)
NEG (occur,not)
COMP:V-N(in) (occur,cell)
MOD_ATT:N-N (cell,bone)
MOD_ATT:N-N (cell,marrowfat)
MOD_ATT:N-ADJ (cell,derive)
MOD_ATT:N-ADJ (cell,mononuclear)