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   1102篇
  免费   53篇
  国内免费   24篇
耳鼻咽喉   1篇
儿科学   38篇
妇产科学   26篇
基础医学   111篇
口腔科学   22篇
临床医学   149篇
内科学   221篇
皮肤病学   48篇
神经病学   100篇
特种医学   114篇
外科学   76篇
综合类   72篇
预防医学   63篇
眼科学   23篇
药学   35篇
中国医学   1篇
肿瘤学   79篇
  2021年   14篇
  2020年   6篇
  2019年   15篇
  2018年   13篇
  2017年   13篇
  2016年   17篇
  2015年   18篇
  2014年   28篇
  2013年   74篇
  2012年   22篇
  2011年   28篇
  2010年   37篇
  2009年   36篇
  2008年   31篇
  2007年   58篇
  2006年   34篇
  2005年   31篇
  2004年   33篇
  2003年   27篇
  2002年   14篇
  2001年   18篇
  2000年   17篇
  1999年   24篇
  1998年   52篇
  1997年   48篇
  1996年   40篇
  1995年   27篇
  1994年   33篇
  1993年   35篇
  1992年   11篇
  1991年   10篇
  1990年   16篇
  1989年   38篇
  1988年   21篇
  1987年   24篇
  1986年   16篇
  1985年   8篇
  1984年   9篇
  1983年   7篇
  1982年   12篇
  1981年   10篇
  1980年   10篇
  1977年   8篇
  1976年   8篇
  1975年   6篇
  1973年   5篇
  1963年   6篇
  1962年   5篇
  1960年   5篇
  1941年   11篇
排序方式: 共有1179条查询结果,搜索用时 281 毫秒
41.
Arguably, Australia's most significant judicial pronouncement on the human rights of those with mental illnesses was made in 2009 by Justice Bell, the then President of the Victorian Civil and Administrative Tribunal (“VCAT”). The decision is an exhaustive analysis of the application of the Charter of Human Rights and Responsibilities Act 2006 (Vic) to the involuntary status of a person subject to a community treatment order in Victoria. It occurred in the context of delays in the conduct of reviews of the status of a mentally ill person by Victoria's Mental Health Review Board (“the Board”). The outcome of the hearing was a declaration that the Board had breached the person's human rights to a fair hearing, even though the person's involuntary status on a community treatment order was not disturbed by VCAT. Whilst some important aspects of Justice Bell's decision concerning the general methodology to be applied when analysing human rights were overturned in the subsequent Court of Appeal decision of R v Momcilovic [2010] VSCA 50, the latter decision did not concern mental health and so leaves Kracke as the most detailed articulation and analysis of human rights within this difficult sphere.  相似文献   
42.
The Ben Lewin film The Sessions has drawn attention again to the potential role for sexual surrogate partners and sex workers in enabling persons with disabilities and impairments to give expression to their sexual needs and desires. However, away from the big screen, the ethics of registered health practitioners in themselves engaging in such therapies are highly problematic. Difficult too is the role of such practitioners in being ‘the therapist’ responsible for enabling or brokering sexual contact between their patients and those offering such services for financial reward. In some jurisdictions, arrangements involving sexual surrogate therapy (especially where the therapist benefits from it financially) may not be lawful. Further, in spite of many assertions one way and the other, there are no data enabling evaluation of the success rates of the interventions of sexual surrogates or sex workers. Whether positive outcomes to such interactions are likely in most circumstances, given that the provision of services is predicated upon idealised attachments, is questionable. It is also unclear whether sexual surrogates’ adherence to an ethical code effectively ameliorates the potential for counter-therapeutic consequences from the commodification of intimacy, and it is far from straightforward to identify what steps should be taken by the referring health practitioner to select a suitable provider of sexual services to their patient or client, and then to monitor whether the arrangement is achieving its objectives.  相似文献   
43.
Objectives: In younger populations childhood sexual and physical abuse have been found to be associated with suicidal ideation. Such associations have not been examined among older adults.

Setting: Data from the National Comorbidity Study-Replication (NCS-R).

Participants: Older adults (60+, N?=?1610) from the NCS-R sample.

Measurements: Suicidal ideation occurring after the age of 60 was assessed. Early-life factors were assessed including childhood physical and sexual abuse and parent's internalizing and externalizing symptoms. Participants’ internalizing and externalizing symptoms were also assessed.

Results: Logistic regression analysis showed that male gender, mother's internalizing symptoms and childhood physical and sexual abuse were associated with suicidal ideation. The association between child abuse and suicidal ideation was mediated by participants’ externalizing symptoms.

Conclusions: Health care workers should screen for suicidal ideation among older adults. In particular, older males with externalizing disorders and a history of child abuse may be at a heightened risk for suicidal ideation.  相似文献   
44.
45.

Background

Patients with traumatic brain injury (TBI) frequently require mechanical ventilation (MV). The objective of this study was to examine the association between time spent on MV and the development of pneumonia among patients with TBI.

Materials and methods

Patients older than 18 y with head abbreviated injury scale (AIS) scores coded 1–6 requiring MV in the National Trauma Data Bank 2007–2010 data set were included. The study was limited to hospitals reporting pneumonia cases. AIS scores were calculated using ICDMAP-90 software. Patients with injuries in any other region with AIS score >3, significant burns, or a hospital length of stay >30 d were excluded. A generalized linear model was used to determine the approximate relative risk of developing all-cause pneumonia (aspiration pneumonia, ventilator-associated pneumonia [VAP], and infectious pneumonia identified by the International Classification of Disease, Ninth Revision, diagnosis code) for each day of MV, controlling for age, gender, Glasgow coma scale motor score, comorbidity (Charlson comorbidity index) score, insurance status, and injury type and severity.

Results

Among the 24,525 patients with TBI who required MV included in this study, 1593 (6.5%) developed all-cause pneumonia. After controlling for demographic and injury factors, each additional day on the ventilator was associated with a 7% increase in the risk of pneumonia (risk ratio 1.07, 95% confidence interval 1.07–1.08).

Conclusions

Patients who have sustained TBIs and require MV are at higher risk for VAP than individuals extubated earlier; therefore, shortening MV exposure will likely reduce the risk of VAP. As patients with TBI frequently require MV because of neurologic impairment, it is key to develop aggressive strategies to expedite ventilator independence.  相似文献   
46.
47.
48.
49.
50.
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