RT Journal Article SR Electronic T1 Assessment of the "E' book as a tool for drug monitoring. JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 32 OP 34 DO 10.1136/jech.35.1.32 VO 35 IS 1 A1 D C Skegg A1 S M Richards A1 R Doll YR 1981 UL http://jech.bmj.com/content/35/1/32.abstract AB For two years, the following records were linked for 10 453 people: (1) basic attributes; (2) details of prescriptions; and (3) information about illnesses recorded by general practitioners (GPs) in an "E' book. Analyses were performed to reveal association between drugs and diagnoses. Although the "E' book has certain disadvantages for drug monitoring, the methods proved to be capable of detecting adverse effects of drugs. Unfortunately the number of practitioners using "E' books would be too small for detection of most serious hazards such as the induction of cancer. Hence it is concluded that the first priority should be to establish a record linkage scheme covering hospital admissions, obstetric deliveries, and deaths.