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   17647篇
  免费   1001篇
  国内免费   65篇
耳鼻咽喉   239篇
儿科学   493篇
妇产科学   349篇
基础医学   2527篇
口腔科学   301篇
临床医学   1600篇
内科学   3499篇
皮肤病学   523篇
神经病学   2187篇
特种医学   1014篇
外科学   2374篇
综合类   126篇
一般理论   4篇
预防医学   939篇
眼科学   294篇
药学   972篇
中国医学   64篇
肿瘤学   1208篇
  2023年   138篇
  2022年   195篇
  2021年   444篇
  2020年   300篇
  2019年   421篇
  2018年   451篇
  2017年   408篇
  2016年   510篇
  2015年   501篇
  2014年   701篇
  2013年   831篇
  2012年   1355篇
  2011年   1424篇
  2010年   820篇
  2009年   710篇
  2008年   1187篇
  2007年   1172篇
  2006年   1114篇
  2005年   1093篇
  2004年   933篇
  2003年   895篇
  2002年   805篇
  2001年   163篇
  2000年   124篇
  1999年   169篇
  1998年   192篇
  1997年   136篇
  1996年   134篇
  1995年   89篇
  1994年   92篇
  1993年   65篇
  1992年   52篇
  1991年   58篇
  1990年   44篇
  1989年   30篇
  1988年   34篇
  1987年   33篇
  1986年   29篇
  1985年   32篇
  1984年   25篇
  1983年   24篇
  1982年   32篇
  1981年   25篇
  1980年   37篇
  1979年   32篇
  1978年   23篇
  1977年   35篇
  1976年   20篇
  1975年   19篇
  1933年   18篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Klawitter  Felix  Walter  Uwe  Axer  Hubertus  Ehler  Johannes 《Der Anaesthesist》2023,72(8):543-554
Die Anaesthesiologie - Die Intensive Care Unit-Acquired Weakness (ICUAW) stellt eine der häufigsten neuromuskulären Komplikationen in der Intensivmedizin dar. Besonders bei...  相似文献   
2.
3.
4.
5.
6.

Objective

To assay peripheral inter-ictal cytokine serum levels and possible relations with non-invasive vagus nerve stimulation (nVNS) responsiveness in migraineurs.

Methods

This double-blinded, sham-controlled study enrolled 48 subjects and measured headache severity, frequency [headache days/month, number of total and mild/moderate/severe classified attacks/month], functional state [sleep, mood, body weight, migraine-associated disability] and serum levels of inflammatory markers [inter-ictal] using enzyme-linked immunoassays at baseline and after 2 months of adjunctive nVNS compared to sham stimulation and suitably matched controls.

Results

No significant differences were observed at baseline and after 2 months for headache severity, total attacks/month, headache days/month and functional outcome [sleep, mood, disability] between verum and sham nVNS. However, the number of severe attacks/month significantly decreased in the verum nVNS group and circulating pro-inflammatory IL-1β was elevated significantly in the sham group compared to nVNS. Levels of anti-inflammatory IL-10 were significantly higher at baseline in both groups compared to healthy controls, but not at 2 months follow-up [p?<?0.05]. Concentrations of high-mobility group box-1 (HMGB-1), IL-6, tumor-necrosis factor-α (TNF-α), leptin, adiponectin, ghrelin remained unchanged [p?>?0.05]. No severe device-/stimulation-related adverse events occurred.

Conclusion

2 months of adjunctive cervical nVNS significantly declined the number of severe attacks/month. Pro-inflammatory IL-1β plasma levels [inter-ictal] were higher in sham-treated migraine patients compared to verum nVNS. However, pro- [IL-6, HMGB-1, TNF-α, leptin] and anti-inflammatory [IL-10, adiponectin, ghrelin] mediators did not differ statistically. Profiling of neuroinflammatory circuits in migraine to predict nVNS responsiveness remains an experimental approach, which may be biased by pre-analytic variables warranting large-scale biobank-based systematic investigations [omics].  相似文献   
7.
8.
9.
10.
Objective: A multidisciplinary vocational rehabilitation programme, the Vocational Enablement Protocol (VEP) was developed to address the specific needs of employees with hearing difficulties. In the current study we evaluated the process of implementing the VEP in audiologic care among employees with hearing impairment. Design: In conjunction with a randomized controlled trial, we collected and analysed data on seven process parameters: recruitment, reach, fidelity, dose delivered, dose received and implemented, satisfaction, and perceived benefit. Study sample: Sixty-six employees with hearing impairment participated in the VEP. The multidisciplinary team providing the VEP comprised six professionals. Results: The professionals performed the VEP according to the protocol. Of the recommendations delivered by the professionals, 31% were perceived as implemented by the employees. Compliance rate was highest for hearing-aid uptake (51%). Both employees and professionals were highly satisfied with the VEP. Participants rated good perceived benefit from it. Conclusions: Our results indicate that the VEP could be a useful treatment for employees with hearing difficulties from a process evaluation perspective. Implementation research in the audiological setting should be encouraged in order to further provide insight into parameters facilitating or hindering successful implementation of an intervention and to improve its quality and efficacy.  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