“…Correspondingly, bioethical debate also tends to focus on the underlying principles that shape the use and recruitment of human (1) volunteers and associated codes and procedures, such as ethical review and informed consent. See, for example, bioethical analyses of informed consent procedures (Boulton and Parker, 2007;Dawson, 2003;Hoeyer, 2003), the use of placebo (Ehni and Wiesing, 2008); the use of inducements to recruit participants (Edwards, 2006); equipoise (Ashcroft, 1999), and balancing patient risk against the benefit to society (van Ness, 2001). Social scientists and anthropologists have also begun to question the autonomy of volunteers' decision-making processes, arguing that wider social, political, and economic conditions influence a decision to join or refuse participation in a clinical trial (Petryna, 2006;Rajan, 2007).…”