Choi Kwok-wai, 37, chose to donate part of his liver to his two-year-old son, Ki-sang, to avoid the long waiting list for organs from dead donors. When Ki-sang was only a few months old he was diagnosed with a condition that affected the normal function of his liver. His parents were urged by transplant experts at the University of Hong Kong, Professor Lo Chung-mau and his colleague Dr Liu Chi-leung, to allow Ki-sang to receive a liver transplant. But they were told the waiting time for the operation could be up to two years due to the serious shortage of donations in Hong Kong. 'I did not want my son to wait. I was really worried he would die before receiving a transplant. So I chose to give part of my liver to Ki-sang,' his father said. Mother Choi Lam Mei-ha said she had been worried about losing both her son and husband if the transplant failed. 'Before surgery, the doctors kept telling me that the success rate was very high, but I was really scared at the time,' she said. The transplant was carried out in April and was successful. Professor Lo said the toddler was recovering fast and could attend kindergarten next year.