Volunteer doctors revisit quake epicenter

WENCHUAN, Sichuan - Huang Wancai, 50, was relieved when he learned that the mysterious heart pain that has plagued him for two years was no big deal.

He got the good news after undergoing a procedure called coronary arteriography on Tuesday in Wenchuan county, Sichuan province, the epicenter of a devastating earthquake nearly 10 years ago.

Han Yaling, a leading expert on cardiovascular disease, flew in with her team from Beijing to perform the procedure. They were among more than 600 medical professionals from across China who volunteered to provide services to residents in commemoration of the disaster that killed more than 80,000 people.