Ronald C. Kessler International Journal of Methods in Psychiatric Research June 1, 2019 2019 Kählke F, Berger T, Schulz A, Baumeister H, Berking M, Auerbach RP, Bruffaerts R, Cuijpers P, Kessler RC, Ebert DD. https://www.ncbi.nlm.nih.gov/pubmed/30687986
