收费全文 | 21728篇 |
免费 | 1741篇 |
国内免费 | 70篇 |
耳鼻咽喉 | 214篇 |
儿科学 | 527篇 |
妇产科学 | 385篇 |
基础医学 | 2969篇 |
口腔科学 | 693篇 |
临床医学 | 2173篇 |
内科学 | 5092篇 |
皮肤病学 | 250篇 |
神经病学 | 2074篇 |
特种医学 | 827篇 |
外国民族医学 | 1篇 |
外科学 | 2725篇 |
综合类 | 466篇 |
一般理论 | 19篇 |
预防医学 | 1746篇 |
眼科学 | 546篇 |
药学 | 1416篇 |
中国医学 | 14篇 |
肿瘤学 | 1402篇 |
2023年 | 83篇 |
2022年 | 98篇 |
2021年 | 337篇 |
2020年 | 181篇 |
2019年 | 307篇 |
2018年 | 364篇 |
2017年 | 279篇 |
2016年 | 318篇 |
2015年 | 395篇 |
2014年 | 561篇 |
2013年 | 913篇 |
2012年 | 1217篇 |
2011年 | 1280篇 |
2010年 | 692篇 |
2009年 | 715篇 |
2008年 | 1276篇 |
2007年 | 1389篇 |
2006年 | 1390篇 |
2005年 | 1403篇 |
2004年 | 1296篇 |
2003年 | 1233篇 |
2002年 | 1215篇 |
2001年 | 378篇 |
2000年 | 334篇 |
1999年 | 324篇 |
1998年 | 305篇 |
1997年 | 271篇 |
1996年 | 249篇 |
1995年 | 248篇 |
1994年 | 211篇 |
1993年 | 184篇 |
1992年 | 249篇 |
1991年 | 220篇 |
1990年 | 245篇 |
1989年 | 197篇 |
1988年 | 222篇 |
1987年 | 218篇 |
1986年 | 193篇 |
1985年 | 213篇 |
1984年 | 190篇 |
1983年 | 179篇 |
1982年 | 222篇 |
1981年 | 225篇 |
1980年 | 172篇 |
1979年 | 156篇 |
1978年 | 114篇 |
1977年 | 92篇 |
1976年 | 86篇 |
1974年 | 97篇 |
1972年 | 81篇 |
Female Genital mutilation/cutting (FGM/C) is associated with enduring psychiatric complications. In this study, we investigate the rates of co-morbid abuses and polyvictimization experienced by survivors of FGM/C. This is a sub-analysis of a cohort study examining the patient population at the EMPOWER Center for Survivors of Sex Trafficking and Sexual Violence in New York City. A retrospective chart-review of electronic medical records was conducted for all consenting adult patients who had FGM/C and had an intake visit between January 16, 2014 and March 6, 2020. Of the 80 participants, ages ranged from 20 to 62 years with a mean of 37.4 (SD?=?9.1) years. In addition to FGM/C, participants were victims of physical abuse (43; 53.8%), emotional abuse (35; 43.8%), sexual abuse (35; 43.8%), forced marriage (20; 25%), child marriage (13; 16.3%), and sex trafficking (1; 1.4%). There was a high degree of polyvictimization, with 41 (51.2%) experiencing 3 or more of the aforementioned abuses. Having FGM/C on or after age 13 or having a higher total abuse score was also found to be strong predictors of depression and PTSD. The high rates of polyvictimization among survivors of FGM/C are associated with development of depression and PTSD. Despite co-morbid abuses, patients still attribute substantial psychiatric symptoms to their FGM/C. Health care providers should understand the high risk of polyvictimization when caring for this patient population.
相似文献Background
In the emergency department, rib fractures are a common finding in patients who sustain chest trauma. Rib fractures may be a sign of significant, underlying pathology, especially in the elderly patients where rib fractures are associated with significant morbidity and mortality. To date, no studies have evaluated the ability of ultrasound to detect rib fractures using cadaver models and subsequently use this model as a teaching tool.Objectives
The purpose of this study was to determine if it is possible to generate rib fractures on cadaver models which could be accurately identified using ultrasound.Methods
This was a cross-sectional study performed during one session at a cadaver lab. A single hemithorax from four adult cadavers were used as models. Single rib fractures on each of rib five through eight were created. Four subjects, blinded to the normal versus fractured ribs, were asked to identify the presence of a fracture on each rib.Results
A total of 8 of 16 potential ribs had fractured induced by study staff. Mean accuracy was 55% for all subjects. The overall sensitivity and specificity for detecting rib fractures was 50% (CI: 31.89–68.11) and 59.38% (CI: 35.69–73.55) respectively. The overall PPV and NPV was 55.17% and 54.29% respectively.Conclusions
In this pilot study, subjects were not able to detect induced rib fractures using ultrasound on cadaver models. The use of this model as a teaching tool in the detection of rib fractures requires further investigation. 相似文献![点击此处可从《Journal of advanced nursing》网站下载免费的PDF全文](/ch/ext_images/free.gif)