Call to improve accuracy of predictive genetic tests
Companies offering 'direct-to-consumer' genetic tests to predict the risk of common conditions such as heart attack and rheumatoid arthritis should provide more information to consumers about the limitations of their services, say US scientists. Their recommendations follow the finding that several tests from two such companies gave different results for the same five individuals. Genome pioneer Craig Venter and colleagues also call for more research into the predictive power of geneti