Complex sentence: The urine sample tested positive for erythropoietin (EPO), and thus the IOC stripped Moreno of her Games accreditation, later referring the matter to the UCI who confirmed the positive result.
Split into simpler sentences: The urine sample tested positive for erythropoietin (EPO). The IOC stripped Moreno of her Games accreditation, later referring the matter to the UCI which confirmed the positive result.