RT Journal Article SR Electronic T1 Pediatric heart surgery in China: progress and challenges JF World Journal of Pediatric Surgery JO World Jnl Ped Surgery FD BMJ Publishing Group Ltd SP e000048 DO 10.1136/wjps-2019-000048 VO 2 IS 1 A1 Xumin Mo A1 Di Yu A1 Qiang Shu YR 2019 UL http://wjps.bmj.com/content/2/1/e000048.abstract AB