《论衡·卷四·书虚篇》
当时在场的诸侯和各国官史有千人以上，肯定有知道医术，治疗毒疮不用女人伏在背上的，而是管仲在为他的君王掩饰淫乱行为。
当时诸侯千人以上，必知方术治疽，不用妇人。
At that time, there were over a thousand feudal vassals and national officials, it is possible that some of them knew the medical skill without using a woman's body to cover the malformation. But Guan Zhong covered up the obscene behavior for his King.