Research Article Are drugs targeted at Alzheimer's disease useful? 1. Useful for what? BMJ 1990; 300 doi: https://doi.org/10.1136/bmj.300.6732.1131 (Published 28 April 1990) Cite this as: BMJ 1990;300:1131 Article Related content Metrics Responses Peer review This is a PDF-only article. The first page of the PDF of this article appears below.