<正>THERE is a group of people known as ciwawa, or "china dolls,"because for them a fall, a collision with a hard object, or even a severe sneeze can end in broken bones. They are sufferers of osteogenesis imperfecta (OI), also known as brittle bone disease. Wang Yi’ou, the 28-year-old founder of the China-Dolls Care and Support Association, is one of them.