21.   In the field of medicine, a new class of synthetic drugs called nootropics has been concocted to stimulate and improve the functions of the brain.

22.   None of those seemed to improve lung function.

23.   Sumahadi added that he would also improve other functions of forest resources, such as their function as tourist attractions.

24.   The doctors hope the procedure will also improve brain function.

25.   The measure would require health plans to cover reconstructive surgeries for children that improve the function of abnormal body structures or give them a more normal appearance.

26.   There are also some herbs that protect and improve liver function.

27.   Though it is too early to tell, Bruner and Tulipan are hopeful the surgery will improve brain function, too.

28.   ARICEPT may allow a greater concentration of acetylcholine in the brain, thereby improving cholinergic function.