1、The data of major intracranial artery could be detected out when gestational age over 20 weeks.
本研究認(rèn)為，胎齡20周以上即可獲得顱內(nèi)主要動(dòng)脈的檢測數(shù)據(jù)。

2、Conclusion Gestational age is the major factor affecting the incidence and survival rate of NEC.
結(jié)論胎齡是影響NEC發(fā)生率和存活率的重要因素。

3、(2) appropriate gestational age (AGA) group (n=41);
(2)適于胎齡兒(appropriate gestational age,AGA)組:41例;