Senior Health Correspondent
SINGAPORE - Mr Zhang Chang Hua is 42 years old and works in regional customer service for a multinational company. He and his wife, a nurse, have two sons in secondary school. He also has brain cancer.
His cancer has been under control for the past year with a drug used off-label - meaning the drug has not been approved for this particular type of cancer. With this drug, his oncologist says he has many good years ahead of him.