Chinese Medical Expert’s Suicide Draws Attention to Questionable Organ Transplant ‘Model’ The suicide of Chinese organ transplant specialist Zang Yunjin has drawn attention to a questionable “Qingdao model” of human organ transplantation. Zang, 57, head of the Organ Transplantation Center at the Affiliated Hospital of Qingdao University, killed himself by jumping off a high building on Feb. 26, a source told the Chinese-language Epoch Times around Feb. 27. He was one of the most well-known liver transplant specialists in China and won a long list of titles and honors over his career for his involvement in the sector, based on China’s state media reports.