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[Comment] Computerised cardiotocography—study design hampers findings

Cardiotocography is a diagnostic tool, not a therapeutic modality. Diagnostic tests are unlikely to improve outcomes unless followed by specific and effective therapeutic interventions. When the management of highly specific abnormalities is not specified in a study protocol but is instead left to the individual discretion of many providers with very different management approaches, the chance that all of them will react in the same way is small.