This query is used to count the number of drug era records (drug_era_id) for all persons. The input to the query is a value (or a comma-separated list of values) for a number of records per person. If the input is ommitted, all possible values are summarized.
Input:
<None>
Sample query run: The following is a sample run of the query. The input parameters are highlighted in blue
Output:Output field list:
Sample output record:
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Drug Era >