Shin Kong Hospital's study of kidney biopsies from the hospital's dialysis and kidney transplant patients found that 28 % showed signs of diabetes complications, and 27 % of Chinese herb nephropathy. And of the 25 tests on patients for Chinese medicine ingredients, 80 % showed positive results for aristolochic acid, which was long ago banned.
新光醫院針對該院洗腎及換腎病患的腎切片研究發現，28％為糖尿病併發症、27％為中藥腎病；而病人提供的 25 個中藥檢體中，高達 8 成驗出含有早已被列為禁藥的馬兜鈴酸。