RT Journal Article SR Electronic T1 The ethics of biomedical markets JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 431 OP 432 DO 10.1136/medethics-2015-102879 VO 41 IS 6 A1 Russell Powell YR 2015 UL http://jme.bmj.com/content/41/6/431.abstract AB