COMPUTERS today can integrate the many equations to reflect the way the heart beats.

Models of hearts can show congenital disease and healthy heart beats.

Drugs can be injected into the model enabling drug companies to determine accurate dosages.

This eliminates the use of animals in laboratories.

The benefit of computer models will raise public awareness in human health and vast numbers of animals will stop suffering needlessly.

SHEILA BRENNAN (MRS), Bombay Street, Blackburn.

Converted for the new archive on 14 July 2000. Some images and formatting may have been lost in the conversion.