For phase I studies, ethical and practical concerns abound.
Travis
Kate
K
D002755:Choice Behavior; D017321:Clinical Trials, Phase I as Topic / Q000941:ethics*; D026690:Ethics, Clinical; D032984:Ethics, Research; D006805:Human Experimentation / Q000941:ethics; D006801:Humans; D007258:Informed Consent / Q000941:ethics*; D010358:Patient Participation / Q000523:psychology; D035842:Research Subjects / Q000523:psychology; D035501:Uncertainty