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Clinical decision support system (CDSS) discussion“Pros” versus “Cons” of CDSS ProRationale Reduction of medication errors or interactionsNiazkhani, Amiri, and Pirnejad (2020) indicate that a CDSS can automatically note prescription errors. For instance, it can detect and notify the clinician of potential drug-to-drug interactions during the selection of medication.Reduction of unwarranted investigationsEdge and Ford (2019) state that clinicians often order tests without a valid rationale, or with oversight of available investigations. When workups are run through an algorithm that checks recent tests and a rationale for the investigation in the case scenario, such errors are reduced. For instance a brain CT scan ordered in a case of head injury, 3 days after another CT done on the order of a separate clinician, may be overruled. If no findings are visible in the CT, a competent CDSS would rightly request an MRI scan.Sending users reminders to vaccines and preventative careAncker et al. (2017) indicate that reminder prompts can improve patient compliance with healthcare. For instance for the pneumococcal vaccine, an initial dose of PCV13 is usually followed by a dose of PPSV23, a year later. The CDSS can send a prompt to the patient prior to and at the time of the second shot.