Song Wenge, the director of medical affairs under Liaoning Provincial Department of Public Health, said.

辽宁省卫生厅医政处处长宋文舸说。

youdao

Song Wenge, the director of medical affairs under Liaoning Provincial Department of Public Health, said.

辽宁省卫生厅医政处处长宋文舸说。

youdao