Long-term efficacy and safety of donepezil in the treatment of Alzheimer's disease: an interim analysis of the results of a US multicentre open label extension study.
Eur Neuropsychopharmacol. 1998 Feb;8(1):67-75. doi: 10.1016/s0924-977x(97)00079-5.
Eur Neuropsychopharmacol. 1998.
PMID: 9452942
Clinical Trial.