Geocoding expects either NoneType or String objects for address fields,
but NaN values were being sent to the geocoding function. This change
converts any NaNs in the parsed clinical records to empty strings before
geocoding so that the expected data type matches what is passed in.
Geocoding expects either NoneType or String objects for address fields, but NaN values were being sent to the geocoding function. This change converts any NaNs in the parsed clinical records to empty strings before geocoding so that the expected data type matches what is passed in.