Department;
of;
Pediatric;
Cardiac;
Surgery;
Center,;
Fuwai;
Hospital,;
Chinese;
Academy;
of;
Medical;
Sciences;
&;
Peking;
Union;
Medical;
College,;
Beijing;
100037,;
China;
肺动脉平滑肌细胞; 血小板衍生生长因子; 细胞增殖; 信号通路; ERK; 诱导; 细胞外信号调节激酶; P27;