"Although there is evidence to show that patients choose more conservative approaches when they become better informed,there is insufficient evidence, as yet, to be confident that the implementation of patient decision support interventions leads to system-wide savings."
Undetermined impact of patient decision support interventions on healthcare costs and savings: systematic review
T Walsh, PJ Barr, R Thompson, E Ozanne, C O'Neill, G Elwyn
British Medical Journal, 2014, 348:g188
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