(ROHAPRO): a computerised network

Study objective - Dutch public health ser vices are charged with collective pre ventive care for the population - care that should, by law, be based on epidemio logical data. General practices potentially offer important data for this purpose, particularly since more and more use a computer. This study aimed to assess whether it is possible to obtain useful epi demiological data from this source. Design - In 1990, the Rotterdam Muni cipal Health Service, in collaboration with the Erasmus University Rotterdam,