首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   922篇
  免费   101篇
  国内免费   11篇
耳鼻咽喉   1篇
儿科学   19篇
妇产科学   4篇
基础医学   41篇
口腔科学   3篇
临床医学   114篇
内科学   67篇
皮肤病学   3篇
神经病学   40篇
特种医学   34篇
外科学   43篇
综合类   105篇
一般理论   1篇
预防医学   316篇
眼科学   6篇
药学   202篇
中国医学   8篇
肿瘤学   27篇
  2024年   2篇
  2023年   23篇
  2022年   27篇
  2021年   33篇
  2020年   53篇
  2019年   43篇
  2018年   49篇
  2017年   44篇
  2016年   35篇
  2015年   34篇
  2014年   60篇
  2013年   70篇
  2012年   45篇
  2011年   67篇
  2010年   43篇
  2009年   50篇
  2008年   42篇
  2007年   45篇
  2006年   57篇
  2005年   47篇
  2004年   43篇
  2003年   40篇
  2002年   21篇
  2001年   13篇
  2000年   9篇
  1999年   11篇
  1998年   2篇
  1997年   5篇
  1996年   6篇
  1995年   3篇
  1994年   1篇
  1993年   3篇
  1992年   4篇
  1990年   1篇
  1989年   1篇
  1987年   2篇
排序方式: 共有1034条查询结果,搜索用时 15 毫秒
31.
While the fear of liability is generally related to malpractice lawsuits, for nurses, including nurse practitioners (NPs), the greater risk is in licensure discipline. Unlike physicians, NPs are more likely to be disciplined by their board of nursing than they are to be sued in malpractice.1 In addition, licensure discipline can be more consequential than malpractice lawsuits, because licensing boards have the authority to temporarily, or even permanently, separate an NP from practice. Because punitive action by a nursing board can create other problems, it is important to understand the potential effects of having one’s license disciplined.  相似文献   
32.
Background: Women are underrepresented in the current substance abuse research; however, women are a particularly vulnerable population when it comes to opioid use and abuse. Pregnant women are even more so, because of the potential that exists for in utero exposure (IUE) to substances. Objectives: To identify trends in IUE to opioids in order to ensure that resources are allocated effectively to address the current opioid epidemic and to assist the populations most affected by it. Methods: This study draws on 15 years' worth of clinical assessment data collected from 3598 child welfare-involved mothers to assess for trends in IUE to substances over time. Data from the last 5 year period (N = 852) are then analyzed to identify recent demographic correlates associated with IUE to opioid substances. Results: A substantial increase in the rates of IUE to opioids over the past 15 years is observed among child welfare-involved mothers. Moreover, we find that race is a significant correlate of IUE to opioids. Conclusion: Study findings are consistent with other recent research that demonstrates racial differences in the populations that are most affected by the opioid epidemic; however, more research is needed to determine how these racial differences in rates of IUE to opioids affect child welfare outcomes.  相似文献   
33.
34.
[目的] 了解天津市各警种警务人员对性传播疾病(STD)以及STD职业暴露和职业防护的认知,总结归纳公安民警的职业防护措施,为后期开展职业防护研究提供现实依据。[方法] 将天津市各警务部门人员分为治安警、侦察警、监所警、交通警、其他警共5组,设计针对天津市警务人员的有关STD认知和STD职业暴露认知以及职业防护意识的问卷,各组随机抽取100名民警进行问卷调查。[结果] 1)对STD认知的调查结果:警务人员对STD病种、STD传播途径认知情况较差,且各警种警务人员之间没有区别。2)对STD职业暴露的调查结果:在常见的5种受伤方式中,治安警、侦察警被拳头打伤、被咬伤的几率明显高于监所警、交通警和其他警;对于常见的4种体液接触方式,治安警、侦察警接触血液、带血的呕吐物或排泄物的几率明显高于监所警、交通警和其他警。3)对STD职业防护的调查结果:警务人员对接触血液、体液等污染物后的自我防护意识差,普遍缺乏STD职业防护相关的学习培训,对STD职业防护措施采取不足,且各警种警务人员之间没有区别。[结论] 天津市警务人员对STD认知差,职业暴露风险高,职业防护意识和职业防护措施的采取均存在明显的不足,应该加强相关知识的教育以及培训;警务人员各警种之间比较对STD的认知及职业防护意识和防护措施的采取无明显差异,但治安警、侦察警职业暴露的风险高于监所警、交通警和其他警。  相似文献   
35.
36.
37.

Context

Although community-based palliative care (CPC) is associated with decreased acute care use in the lead up to death, it is unclear how the timing of CPC initiation affects this association.

Objectives

We aimed to explore the association between timing of CPC initiation and hospital use, over the final one, three, six, and 12 months of life.

Methods

We conducted a retrospective, population-based study in Perth, Western Australia. Linked administrative data including cancer registry, mortality, hospital admissions, emergency department (ED), and CPC records were obtained for cancer decedents from 1 January, 2001 to 31 December, 2011. The exposure was month of CPC initiation; outcomes were unplanned hospitalizations, ED presentations, and associated costs.

Results

Of 28,331 decedents residing in the CPC catchment area, 16,439 (58%) accessed CPC, mostly (64%) in the last three months of life. Initiation of CPC before the last six months of life was associated with a lower mean rate of unplanned hospitalizations in the last six months of life (1.4 vs. 1.7 for initiation within six months of death); associated costs were also lower ($(A2012) 12,976 vs. $13,959, comparing the same groups). However, those initiating CPC earlier did show a trend toward longer time in hospital when admitted, compared to those initiating in the final month of life.

Conclusions

When viewed at a population level, these results argue against temporally restricting access to CPC, as earlier initiation may pay dividends in the final few months of life in terms of fewer unplanned hospitalizations and ED presentations.  相似文献   
38.
曾仁攀  王丹玲  钱平 《武警医学》2022,33(11):924-926
 目的 分析不同海拔高度高原驻训官兵肾脏健康状况。方法 随机抽取2021-07至2021-10四川阿坝地区驻训部队575名军人的体检报告进行研究,根据驻训海拔高度分为≤2600 m组(255例)和>2600 m组(320例)。血清尿素、肌酐、尿酸任何一项指标超出参考值范围即判断为肾功能异常。根据肾脏彩超检查结果,包括肾尿盐结晶、肾结石、肾囊肿、肾钙化灶等记录肾脏病变情况,出现任何一种阳性结果即判断为肾脏彩超异常。结果 575例中,肾功能三项异常者198例(34.43%),尿酸升高176例(30.61%),肌酐升高39例(6.78%),尿素升高7例(1.22%);肾脏彩超检查异常者88例(15.30%),肾尿盐结晶56例(9.74%),肾结石27例(4.70%),肾囊肿12例(2.09%),肾钙化灶1例(0.17%),肾错构瘤1例(0.17%)。>2600 m组肾功能三项异常、尿酸升高、肾脏彩超异常、肾尿盐结晶和肾囊肿的发生率显著高于≤2600 m组,差异有统计学意义(P<0.001)。结论 高原驻训官兵肾脏检查结果异常多为血清尿酸升高和肾尿盐结晶,且多发生于海拔2600 m以上区域,应重点防治。  相似文献   
39.
40.
罗杰 《中国药事》2020,34(5):498-507
目的: 研究规范适用新修订《中华人民共和国药品管理法》的行政责任与刑事责任。方法: 以《药品管理法》修订为视角,从药品管理行政责任与刑事责任的理论基础、实践运行的缺陷入手,借鉴其他国家和地区的立法模式。结果: 从实体上对药品管理行政责任与刑事责任各项制度进一步细化完善。结论: 行政责任、刑事责任构成药品管理法律责任的核心内容,新修订的《药品管理法》法律责任部分有了较大的变化,必须加强对药品管理法律责任的研究,细化完备各项制度,促进药品管理行政责任与刑事责任的有效实施。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号