QUEST DIAGNOSTICS DL-,01 revenue for the last year amounted to 8.38 B EUR, the most of which — 8.13 B EUR — came from its highest performing source at the moment, Diagnostic Information Services, the year earlier bringing 8.98 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought QUEST DIAGNOSTICS DL-,01 8.38 B EUR, and the year before that — 9.23 B EUR.