《汉书·传·霍光金日磾传》
当时许后突然死亡之时，官吏逮捕了宫中所有医生，并弹劾淳于衍在治病过程中行迹可疑，不合常理，就把他关进了监狱。
始，许后暴崩，吏捕诸医，劾衍侍疾亡状不道，下狱。
When Empress Xu died suddenly, officials arrested all the physicians in the palace and impeached Chunyu Yan, suspending him from his post for suspicious and unusual behavior during the treatment process.