Comment and authors' reply on the article: Tsiachristas, A, McDaid, D, Casey, D, Brand, F, Leal, J, Park, A-La, Geulayov, G, & Hawton, K, 2017: General hospital costs in England of medical and psychiatric care for patients who self-harm: a retrospective analysis, 4(10), October 2017, pp. 759-767.