An emergency physician from Guihang No 300 hospital demonstrates how to perform cardio-pulmonary resuscitation for an adult on Jan 20. The day marked the first "medical first aid publicity day" in Guiyang, the capital city of Southwest China's Guizhou province. Many hospitals in the city held first aid knowledge popularization events, demonstrating first aid procedures, issuing publicity materials and offering free consultations, among other activities. The goal was to help the public enhance their first aid awareness and capabilities. [Photo/gywb.cn]