cchdCOCA¹⁵⁷⁸⁷⁵ 基本例句 =cyanotic congenital heart disease 紫绀型先天性心脏病 Objective To examine the relationship between vascular endothelial growth factor VEGF and cyanotic congenital heart disease CCHD and the severity of cyanosis. 目的观察血管内皮生长因子 VEGF在发绀型先天性心脏病 CCHD中变化及其与病情严重程度关系。 cnki