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   267393篇
  免费   17383篇
  国内免费   584篇
耳鼻咽喉   3189篇
儿科学   8133篇
妇产科学   5655篇
基础医学   38405篇
口腔科学   10308篇
临床医学   20705篇
内科学   57100篇
皮肤病学   5792篇
神经病学   23925篇
特种医学   9357篇
外国民族医学   35篇
外科学   33550篇
综合类   1844篇
现状与发展   1篇
一般理论   154篇
预防医学   29383篇
眼科学   4777篇
药学   16074篇
中国医学   883篇
肿瘤学   16090篇
  2023年   1183篇
  2022年   2185篇
  2021年   5084篇
  2020年   3470篇
  2019年   4958篇
  2018年   6717篇
  2017年   5224篇
  2016年   5155篇
  2015年   5901篇
  2014年   8132篇
  2013年   10440篇
  2012年   16165篇
  2011年   16806篇
  2010年   8561篇
  2009年   8159篇
  2008年   13694篇
  2007年   14442篇
  2006年   13568篇
  2005年   13634篇
  2004年   12404篇
  2003年   11487篇
  2002年   9167篇
  2001年   8465篇
  2000年   8441篇
  1999年   7479篇
  1998年   2823篇
  1997年   2330篇
  1996年   2370篇
  1995年   1995篇
  1994年   1927篇
  1993年   1760篇
  1992年   4859篇
  1991年   4471篇
  1990年   4204篇
  1989年   4028篇
  1988年   3664篇
  1987年   3355篇
  1986年   3135篇
  1985年   3006篇
  1984年   2155篇
  1983年   1799篇
  1982年   998篇
  1981年   886篇
  1980年   820篇
  1979年   1651篇
  1978年   1058篇
  1977年   841篇
  1975年   850篇
  1974年   904篇
  1973年   891篇
排序方式: 共有10000条查询结果,搜索用时 468 毫秒
91.
92.
93.
94.
To improve the diagnostic accuracy of electroencephalography (EEG) criteria for nonconvulsive status epilepticus (NCSE), external validation of the recently proposed Salzburg criteria is paramount. We performed an external, retrospective, diagnostic accuracy study of the Salzburg criteria, using EEG recordings from patients with and without a clinical suspicion of having NCSE. Of the 191 EEG recordings, 12 (12%) was classified as an NCSE according to the reference standard. In the validation cohort, sensitivity was 67% and specificity was 89%. The positive predictive value was 47% and the negative predictive value was 95%. Ten patients in the control group (n = 93) were false positive, resulting in a specificity of 89.2%. The interrater agreement between the reference standards and between the scorers of the Salzburg criteria was moderate; disagreement occurred mainly in patients with an epileptic encephalopathy. The Salzburg criteria showed a lower diagnostic accuracy in our external validation study than in the original design, suggesting that they cannot replace the current practice of careful weighing of both clinical and EEG information on an individual basis.  相似文献   
95.
96.
Neurological Sciences - Chronic subdural haematoma (CSDH) is one of the most common neurosurgical pathologies. The recurrence of chronic subdural haematomas is an important concern, considering...  相似文献   
97.

Objective

To analyse and understand vaccination hesitancy discourses, particularly those of people who have decided not to vaccinate their sons and daughters.

Methods

Qualitative study of five individual interviews and two focus groups with people who chose not to vaccinate their children in the province of Granada (Spain).

Results

Mothers and fathers manifest a system of health beliefs different to the biomedical paradigm. From an ethical point of view, they justify their position based on the right to autonomy and responsibility for their decisions. Alleged specific reasons: they doubt administration of several vaccines simultaneously at an early age in a systematic way and without individualising each case; they fear adverse effects and do not understand the variations of the vaccination schedule.

Conclusions

These vaccination hesitancy discourses respond to the individual vs collective conflict; parents defend their right to bring up their children without any interference from the state and focus their responsibility on the individual welfare of their sons and daughters, regardless of the consequences that their actions might have on the collective. In their management of risks, they consider those derived from vaccination more relevant than the individual or collective consequences of not doing so. The vaccines generating most doubts are the more controversial ones within the scientific world. Transparency in communication of adverse effects; authorities respect for other health/disease concepts; banishment of the term “anti-vaccines” from the media and scientific vocabulary, and developing spaces for dialogue are bridges to be built.  相似文献   
98.
Drug‐induced reactions are complications associated with high mortality and significant morbidity. Stevens–Johnson Syndrome (SJS) and toxic epidermal necrolysis (TEN) are examples of these conditions, which are characterized by skin and mucous lesions. Here, we report a case of a 9‐year‐old girl who presented with blisters associated with an extensive vesicular rash and multiple ulcerations on the lips and oral cavity. A drug‐induced hypersensitivity reaction to antibiotics was suspected, and a diagnosis of TEN was made. The patient was managed with withdrawal of the suspected causative agent, and the oral lesions were treated with low‐level laser therapy (LLLT) and oral hygiene. This case highlights that TEN requires interdisciplinary intervention with dental assistance and follow‐up to improve symptoms, nutrition, systemic condition, and quality of life.  相似文献   
99.
100.
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