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Elevated plasma cotinine and tetrahydrocannabinol (THC) levels in e-cigarette, or vaping, product use-associated lung injury (EVALI) subjects. The level of cotinine (in plasma) and THC metabolites (in urine) from non-users and EVALI subjects was quantified using ELISA. n=6 per group. Data are shown as mean±sem. *: p<0.05 as per unpaired t-test.
