Every Tuesday, 7-year-old Yin Chenyang arrives at the hospital on time, even though she was discharged after two years of treatment.

"She is now in stable condition and only needs oral drugs and regular examinations," said her mother, Liu Zhiying.

"However, the previous long-term treatment was upsetting and depressing for her, so when I learned about the guitar class, I asked my daughter to give it a try. After a few lessons, she can play a simple tune and has become more active than before.

"Because of her sickness, she can't go to school and has to avoid public activities. In the class, she can interact with other children and make more friends."

More than 30 children, from ages 3 to 14, have signed up for the lessons.

"The doctor told me that my daughter needed about three years of treatment, so I decided to stay in Changchun and stick to teaching these guitar classes at the hospital," Zhang said. "I also hope to open more classes."

Head nurse Liu said: "We have been looking for various ways to make the sick children happy, such as offering cultural and fine art courses, as well as decorating a wall with building blocks for them. Zhang was a great help.

His lessons not only dissipated the children's fears and worries about the treatments, but have also brought them joy and expectations for the future."