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. 2018 Feb 13;2018(2):CD002097. doi: 10.1002/14651858.CD002097.pub4
Done (e.g. drug levels a by a test, performance of providers against pre‐set criteria, number of tests ordered, number of c‐sections performed etc.). Outcome measures like provider or patient satisfaction included if assessed using a questionnaire with known reliability and validity.  
Not clear the paper should be discussed with the contact editor for the review before data extraction is undertaken  
Not done (e.g. self‐reported data, measurement of attitudes, beliefs, perceptions or satisfaction)