“…In this regard, Mann et al [10] and Brown et al [37] reported "summarizing" as a useful technique to check for patients' understanding. Other topics specifically addressed by the training programs included how to explain the aims of clinical trials [10,13,29,30,39,41], the importance of informing patients about the voluntariness of their potential enrollment [10,11,29,30,33], or the importance of avoiding coercive behaviors and/or the importance of adopting a shared decision making process [34,35,37]. In some training, participants were instructed on strategies for clarifying key terms such as "randomization" and "placebo," which tend to be difficult for a large proportion of patients to understand or accept [10,13,30,36,39,41,42,45,46,48].…”