english: To find these subtle differences, researchers compare the breath  of healthy people with the breath of people  who suffer from a particular disease using profiles based on hundreds  of breath samples.
non_english: Kako bi našli ove subtilne razlike, istraživači upoređuju dah zdrave osobe sa dahom osobe koja pati od neke određene bolesti koristeći šablone zasnovane na uzorcima stotine dahova.