title: Health economics research methodology.
mesh_terms: D003863:Depression / Q000188:drug therapy; D004470:Economics, Medical; D006801:Humans; D008603:Mental Health; D008605:Mental Health Services / Q000706:statistics & numerical data*; D012943:Social Security / Q000458:organization & administration; D019966:Substance-Related Disorders / Q000453:epidemiology / Q000523:psychology; D014481:United States