CHRONOS: A data base management package for physicians and researchers

This paper describes a general data base management package defined for medical applications. CHRONOS is a user-oriented system which has been designed for physicians to get periodical reports and for researchers to prepare statistical treatments. The basic principles of the data base and program organization are described: many possibilities are offered for data acquisition and specific efforts have been made in order to analyze easily the evolution of patients. Several medical applications are now operational with CHRONOS in fields as different as psychiatry and nephrology.