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