Sentence:The study found that people who took the [e1]combination[/e1] of cholinesterase [e2]inhibitors[/e2] (Aricept, Razadyne, or Exelon) and Memantine, showed a significantly slower rate of cognitve decline than those who took only a cholinesterase inhibitor or no drug.
 e1: combination. 
 e2 : inhibitors.
Answer: Other