目的：研究人前磨牙牙髓牙本质复合体的增龄性变化，探讨牙衰老和老年牙病的形态学基础。
Objective: to provide morphological basis for dental aging and senile teeth diseases and to study age-related changes of pulp-dentin complex of human premolar.
方法：对45例不同胚(胎)龄时期的鞍旁结构行组织学连续切片，观察鞍侧腔壁结构及其内容物的形态学变化过程。
Methods: Serial histological sections of 45 human embryos and fetus were performed to observe the development and organization of the contents of the compartment.
目的：回顾探讨老年人的监测血液流变学指标变化与增龄的关系。
Objective: To investigate the changes of hemorheology for old and middle-young-aged persons who were in different age phases.
人口统计学因素，比如年龄、性别、驾龄、职业与否等因素，是驾驶员侵犯驾驶行为的影响因素。
The demographic factors, such as age, gender, driving experience, whether professional, would influence the exhibition of drivers' aggressive driving behavior.
方法采用3月龄雌性大鼠，切除双侧卵巢造成骨质病变模型，观察两药联用对动物骨力学、骨组织形态学的影响。
Methods Female rats aged 3 months were used to be an animal model of osteoporosis caused by castrated bilateral ovaries.
死亡患儿与幸存患儿出生体重、胎龄及胸管留置时间差异有统计学意义。
Birth weight, gestational age and chest tube duration were significantly different between dead and surviving infants.
目的探讨人12周龄胚胎脑脉络丛上皮细胞是否具有神经干细胞的生物学特性。
Objective In order to investigate whether the 12-week-old embryo brain choroid plexus epithelial cells have neural stem cell biological properties.
观察组95例，对照组90例，两组在日龄、体质量、性别、黄疸程度差异无统计学意义。
Observation of 95 cases in the control group 90 cases, the two groups in age, weight, gender, no significant differences in the degree of jaundice.
分别于第1~4周龄时取十二指肠在光学显微镜下进行组织学观察。
Duodenum samples were taken from 1,2,3,4 wk broilers for morphological study with light microscopy.
不同护龄、不同职称护理人员掌握程度无统计学意义，但与学历、科室相关。
Their skill and knowledge were not correlated with their nursing age and professional title but correlated with their educational level and departments. It is concluded...
不同护龄、不同职称护理人员掌握程度无统计学意义，但与学历、科室相关。
Their skill and knowledge were not correlated with their nursing age and professional title but correlated with their educational level and departments. It is concluded...
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