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The Maps are run on the whole population to produce a map cache. This example of the indications for endoscopy for a gastroenterology practice shows the map stage took about 20 minutes for 113000 nested and at times complex patient records as VMRs.
The Some Reduce gello is shown here (; again its a fairly simple worked example). The loop is just to help the output strings be unique and somewhat cleaned.:
The actual result for the combined MapReduce takes only seconds::
The result can be saved into various formats with a right click on the result element, in this case 'b':
A clinical use case is for audit and research. The auditable and researchable Map cache could be updated on a regular basis to surface population clinical data of interest for bespoke Reduce gello queries.
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