Amid continued moral panic over vaping, another study has confirmed that there is no link between any vaping-related death or pulmonary problem and even a single legal e-cigarette pod.

A study published by over a dozen physicians from the Mayo Clinic in the New England Journal of Medicine found that the inhalation of “one or more … toxic substances” was responsible for the lung injuries observed in the biopsies in 17 patients. Seventy-one percent of the patients self-reported vaping marijuana or cannabis oils, but the researchers did not appear to do any urine or hair testing to see if the other 29% had done the same.