[Intravenous Subnarcotic Ketamine Infusions for Treatment-Resistant Depression: Historical Development, Comparison with Esketamine Nasalspray, and Prospects].
Placebo effects are among the greatest paradoxes in medical research. Although more data on placebos are available from placebo-controlled trials than on any treatment in medicine, there has been comparatively little deep interrogation of issues related to their measurement, appraisal, and interpretation. Most of the work that has been done, including that in psychiatry, is narrowly focused on...