The study, published online Monday in the journal BMJ Quality and Safety, underscores the trade-offs in the diagnostic process: More medical tests generally improve detection, but they can also increase costs, harm patients, and produce false positives.

WSJ: Adding Up Diagnosis Errors

They are a very strong rebuttal to some of the critics of the PTSD diagnostic assessment process in general.

NPR: Study Tracks Stress Disorder Among Vietnam Vets

Dr. FRIEDMAN: The Institute of Medicine, at the request of the VA, is looking into the whole issue of PTSD, the diagnostic validity, the assessment process.

NPR: Study Tracks Stress Disorder Among Vietnam Vets

To help in this process, researchers have developed diagnostic criteria, known as Rome criteria, for IBS and other functional gastrointestinal disorders.

CNN: Irritable bowel syndrome

The genome mapper itself has been trying to refocus on drug discovery and diagnostic tests and has had to shed jobs in the process.

FORBES: DeCode's Genetic Breakthrough Barely Registers

The third should investigate the post diagnostic teacher policy elaboration phase, the progress achieved in Benin and the prospects for Burundi and Lesotho to start the process.

UNESCO: Taking stock of teacher diagnostic studies in Africa