The readability of Wikipedia's articles on epilepsy was evaluated and found to be low, indicating that they were difficult to read.[32] Another study found that Wikipedia's information about neurological diseases was significantly more difficult to read than the information in the American Academy of Neurology's patient brochures, the Mayo Clinic's website, or MedlinePlus.[33] Another 2015 study, this one authored by Samy Azer, reported that Wikipedia should not be used to learn about concepts related to pulmonology students.[34] Another 2015 study by Azer found that Wikipedia entries about cardiovascular diseases were "not aimed at a medical audience" and were mainly inaccurate due to errors of omission.[35]