经过几年的检索，他与该大学的教授张元豪（HowardChang）选定了一种特殊的RNA分子，这种分子非常奇怪，它在腰部以下的皮肤细胞中广泛存在，但在腰部以上却完全不见踪迹。
After a couple years of searching , he and a professor there , Howard Chang , settled on an RNA molecule that , somewhat bizarrely , was produced widely by skin cells below the waist but not above .
张元豪