Medication Order is an action that occurs at a point in time. In emeasure 52 the CQM logic requires an occurrence of a medication order for medication a to "start before or during" or "concurrent" with the occurrence of a medication order for medication b. How is this logical loop evaluated?

E.g. eMeasure 52
"Occurrence A of Medication, Order: Leucovorin" concurrent with "Occurrence A of Medication, Order: Dapsone and pyrimethamine"

"Occurrence A of Medication, Order: Dapsone and pyrimethamine" < 1 day(s) starts before or during "Occurrence A of Medication, Order: Leucovorin"

"Occurrence A of Medication, Order: Leucovorin" < 1 day(s) starts before or during "Occurrence A of Medication, Order: Dapsone and pyrimethamine"