To ensure that the men would show up for the possibly dangerous, painful, diagnostic, and non-therapeutic spinal taps, the doctors sent the 400 patients a misleading letter titled "Last Chance for Special Free Treatment".
为了保证那些被实验者会参加痛苦的，诊断性而非治疗性而且存在潜在危险的脊髓抽取调查，医生们给那400个病人送去了标题为“免费特殊治疗的最后机会”的信。