title: Educational advantage.
abstract: Emerging issues in human research challenge us to think outside of the box. The first three papers in this issue provide such challenges. New ethical issues arise in connection with research on the human microbiome, sham surgery, and the use of psychotherapy in research interventions in tribal cultures in Kenya.
mesh_terms: D035843:Biomedical Research / Q000941:ethics*; D032984:Ethics, Research; D006801:Humans