1. Physician’s Desk Reference and Database (in Finnish). Kustannus Oy Duodecim. Yearly revised edition (14.3. 2002),
http://www.duodecim.fi/kustannus/cdrom/index.html
2. Jousimaa, J., Kunnamo, I.: Physicians’ patterns of using a computerized collection of guidelines of primary health care. Int. J. Technol. Assess Health Care 14, 484–493 (1998)
3. Jormanainen, V., Jousimaa, J., Kunnamo, I., Ruutu, P.: Physicians’ Database Searches as a Tool for Early Detection of Epidemics. Emerging Infectious Diseases 7(3) (2001)
4. Wiley Series in Mathematical and Computational Biology;O. Diekman,2000
5. Farmer, R.D.T., Miller, D.L., Lawrenson, R.: Lecture Notes on Epidemiology and Public Health Medicine. Blackwell Scientific, Oxford (1996)