OBJECTIVES: To determine the association between inhibition of serotonin reuptake by antidepressants and upper gastrointestinal bleeding. DESIGN: Retrospective cohort study from population based datab
Objectives: To validate a self administered postal questionnaire appraising risk of coronary heart disease. To determine whether use of this questionnaire increased the percentage of people at high ri
Exposure of healthcare workers in England, Wales, and Northern Ireland to bloodborne viruses between July 1997 and June 2000: analysis of surveillance data
