Copy and paste this link:
http://journals.cambridge.org/action/displayAbstract?aid=273098
Copy and paste this citation
Arnold Mitnitski,
Janice Graham
and Kenneth Rockwood
(1999).
Modeling Decline in Alzheimer's Disease. International Psychogeriatrics, 11
,
pp 211-213
doi:10.1017/S1041610299005761