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   12685篇
  免费   818篇
  国内免费   117篇
耳鼻咽喉   105篇
儿科学   266篇
妇产科学   365篇
基础医学   1576篇
口腔科学   476篇
临床医学   1051篇
内科学   3048篇
皮肤病学   175篇
神经病学   1038篇
特种医学   549篇
外科学   2271篇
综合类   64篇
预防医学   587篇
眼科学   133篇
药学   787篇
中国医学   31篇
肿瘤学   1098篇
  2023年   89篇
  2022年   112篇
  2021年   361篇
  2020年   244篇
  2019年   352篇
  2018年   433篇
  2017年   303篇
  2016年   348篇
  2015年   423篇
  2014年   630篇
  2013年   714篇
  2012年   1038篇
  2011年   1070篇
  2010年   568篇
  2009年   553篇
  2008年   844篇
  2007年   861篇
  2006年   730篇
  2005年   718篇
  2004年   686篇
  2003年   571篇
  2002年   456篇
  2001年   110篇
  2000年   112篇
  1999年   97篇
  1998年   82篇
  1997年   75篇
  1996年   60篇
  1995年   60篇
  1994年   80篇
  1993年   60篇
  1992年   84篇
  1991年   82篇
  1990年   66篇
  1989年   63篇
  1988年   46篇
  1987年   35篇
  1986年   50篇
  1985年   36篇
  1984年   35篇
  1983年   32篇
  1982年   18篇
  1981年   15篇
  1979年   21篇
  1978年   16篇
  1977年   18篇
  1975年   16篇
  1974年   24篇
  1973年   15篇
  1967年   13篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
An increased number of patients is at risk of Candida spp. bloodstream infection (CBSI) in modern medicine. Moreover, the rising of antifungal resistance (AR) was recently reported. All consecutive CBSI occurred in our Hospital (consisting of 1,370 beds) between 2015 and 2018, were reviewed. For each case, Candida species, AR pattern, ward involved and demographic data of patients were recorded. Overall, 304 episodes of CBSI occurred, with a median (q1:first-,q3:third quartile) of 77 (71-82) CBSI/year. Over the years, a significant increase of CBSI due to C. albicans compared to non-albicans strains was recorded in medical wards (from 65% to 71%, p=0.030), while this ratio remained stable in others. An increase of resistant strains to multiple antifungals such as C. guillermondii was noticed in recent years (from 0% to 9.8%, p=0.008). Additionally, from 2015 to 2018 an increase in fluconazole-resistance was recorded in our Hospital (from 7.4% to 17.4%, p=0.025) and a slight increase in voriconazole-resistance (from 0% to 7% in 2018, p=0.161) was observed, while resistance to echinocandin and amphotericin B remained firmly below 2%.This study suggests a rapid spread of antifungal resistance in our Hospital; therefore, an appropriate antifungal stewardship programs is urgently warranted.  相似文献   
2.
Clinical Oral Investigations - To determine the usefulness of Serum C-terminal telopeptide cross-link of type 1 collagen (sCTX) as a preoperative marker for predicting the risk of developing...  相似文献   
3.
4.
5.
6.
7.
8.
The fast-moving coronavirus disease 2019 (COVID-19) called for a rapid response to slowing down the viral spread and reduce the fatality associated to the pandemic. Policymakers have implemented a wide range of non-pharmaceutical interventions to mitigate the spread of the pandemic and reduce burdens on healthcare systems. An efficient response of healthcare systems is crucial to handle a health crisis. Understanding how non-pharmaceutical interventions have contributed to slowing down contagions and how healthcare systems have impacted on fatality associated with health crisis is of utmost importance to learn from the COVID-19 pandemic. We investigated these dynamics in Italy at the regional level. We found that the simultaneous introduction of a variety of measures to increase social distance is associated with an important decrease in the number of new infected patients detected daily. Contagion reduces by 1% with the introduction of lockdowns in an increasing number of regions. We also found that a robust healthcare system is crucial for containing fatality associated with COVID-19. Also, proper diagnosis strategies are determinant to mitigate the severity of the health outcomes. The preparedness is the only way to successfully adopt efficient measures in response of unexpected emerging pandemics.  相似文献   
9.
10.
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