收费全文 | 1043篇 |
免费 | 61篇 |
国内免费 | 9篇 |
耳鼻咽喉 | 14篇 |
儿科学 | 67篇 |
妇产科学 | 37篇 |
基础医学 | 76篇 |
口腔科学 | 34篇 |
临床医学 | 108篇 |
内科学 | 243篇 |
皮肤病学 | 52篇 |
神经病学 | 61篇 |
特种医学 | 27篇 |
外科学 | 241篇 |
综合类 | 17篇 |
预防医学 | 34篇 |
眼科学 | 24篇 |
药学 | 59篇 |
中国医学 | 3篇 |
肿瘤学 | 16篇 |
2023年 | 14篇 |
2022年 | 23篇 |
2021年 | 39篇 |
2020年 | 30篇 |
2019年 | 27篇 |
2018年 | 30篇 |
2017年 | 39篇 |
2016年 | 42篇 |
2015年 | 47篇 |
2014年 | 40篇 |
2013年 | 66篇 |
2012年 | 65篇 |
2011年 | 55篇 |
2010年 | 40篇 |
2009年 | 49篇 |
2008年 | 86篇 |
2007年 | 105篇 |
2006年 | 76篇 |
2005年 | 77篇 |
2004年 | 59篇 |
2003年 | 42篇 |
2002年 | 22篇 |
2001年 | 10篇 |
2000年 | 10篇 |
1999年 | 5篇 |
1998年 | 2篇 |
1996年 | 3篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 4篇 |
1988年 | 1篇 |
![点击此处可从《Echocardiography (Mount Kisco, N.Y.)》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Methods: The mothers diagnosed with preterm prelabor rupture of membranes (PPROM) (n?=?28) and their preterm infants (n?=?28) were included in the study. PTX3 concentrations were studied in plasma in the maternal peripheral blood and umbilical/peripheral vein in the neonates. The relationship between the mPTX3–nPTX3 concentrations and neonatal outcome were investigated using non-parametric tests and binary logistic regression analysis.
Results: The mean mPTX3 concentration was 10.35?±?7.82?μg/L. Ten (35.7%) of all mothers were within the normal range and 18 (64.3%) in high percentile (≥97.5 percentile). There was no relation between mPTX3 concentrations and clinical or histologic chorioamnionitis, latency of PPROM, and early neonatal outcome. Mean nPTX3 concentrations was 9.18?±?7.83?μg/L and high nPTX3 concentrations were detected in five (17.8%) neonates. nPTX3 concentrations were inversely correlated with gestational age and correlated with rate of intraventricular hemorrhage (IVH) and mortality. Neonates with high nPTX3 concentrations also have lowered APGAR scores, increased rate of respiratory distress syndrome, clinical sepsis, IVH, necrotizing enterocolitis and prolonged NICU stay.
Conclusion: High PTX3 concentrations of the newborns are associated with some worsened early neonatal outcome including lower gestational age at delivery, increased rate of IVH and mortality. Maternal PTX3 concentrations are not an adequate marker in defining clinical or histologic chorioamnionitis and early neonatal outcome. 相似文献