"I will keep working here for five years," he said. "Rehabilitation takes a long time. Once started, I won't just give up until the center has a robust foundation and other colleagues can take over the work later."
His workload in the center is heavy, tending to the needs of people who have gone through amputations or feel the aftereffects of fractures.
Poon is fond of guqin, the traditional seven-string Chinese instrument, and sometimes plays the instrument to ease patients' pain.
At the center, he is not only a service provider, but also a recipient of help from his patients. Poon himself was traumatized and had nightmares for months after he finished the first volunteer mission in Sichuan and returned to Hong Kong.
He said he was shocked to see so much death and images kept reappearing in his dreams.
Challenges remain for smoking ban