首页 | 官方网站   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   714072篇
  免费   49748篇
  国内免费   1341篇
医药卫生   765161篇
  2019年   5543篇
  2018年   7974篇
  2017年   6194篇
  2016年   6930篇
  2015年   7691篇
  2014年   10438篇
  2013年   15648篇
  2012年   20814篇
  2011年   21893篇
  2010年   12976篇
  2009年   12107篇
  2008年   20271篇
  2007年   21824篇
  2006年   22239篇
  2005年   20801篇
  2004年   20409篇
  2003年   19327篇
  2002年   18890篇
  2001年   36706篇
  2000年   37211篇
  1999年   30659篇
  1998年   8037篇
  1997年   6830篇
  1996年   7072篇
  1995年   6708篇
  1994年   6184篇
  1993年   5691篇
  1992年   23131篇
  1991年   23091篇
  1990年   22519篇
  1989年   22257篇
  1988年   20181篇
  1987年   19569篇
  1986年   18607篇
  1985年   17427篇
  1984年   12808篇
  1983年   10838篇
  1982年   5985篇
  1979年   11597篇
  1978年   8193篇
  1977年   6879篇
  1976年   6650篇
  1975年   7311篇
  1974年   8554篇
  1973年   8203篇
  1972年   7701篇
  1971年   7176篇
  1970年   6933篇
  1969年   6355篇
  1968年   5828篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
We report two British cases of liver abscess, due to Klebsiella pneumoniae and associated with synchronous infection elsewhere, which required liver resection for definitive treatment. They illustrate the geographic spread of aggressive K pneumoniae liver infection and demonstrate the importance of early aggressive treatment.  相似文献   
2.
3.
Haemophilia is a common cause of genetically inherited bleeding disorders. Pseudotumours occur in 1–2 % of persons with severe forms of haemophilia. These are a result of repeated haemorrhage into soft tissues, subperiosteum or a site of bone fracture with inadequate resorption of the extravasated blood. There are a number of therapeutic alternatives for this dangerous condition: surgical removal, percutaneous management, irradiation, embolization etc. In this case report, we describe the natural history, clinical course and successful surgical management of a patient with haemophilia who presented with a massive pseudotumour. We also briefly review the relevant literature on the various therapeutic modalities that have been implemented in the management of this rare complication. Though surgeons may be averse to operate on haemophiliacs, primary surgical management as done in our case may prove to be the definitive treatment option for such patients.  相似文献   
4.
5.
6.
7.
8.
9.
10.

Aims

To examine the influence of pre-existing psychiatric disorder on the choice of treatment in patients with gynaecological cancer.

Materials and methods

The analyses were based on all patients who underwent surgical treatment for endometrial, ovarian or cervical cancer who were registered in the Danish Gynecological Cancer Database in the years 2007–2014 (3059 patients with ovarian cancer, 5100 patients with endometrial cancer and 1150 with cervical cancer). Logistic regression model and Cox regression model, adjusted for relevant confounders, were used to estimate the effect of pre-existing psychiatric disorder on the course of cancer treatment. Our outcomes were (i) presurgical oncological treatment, (ii) macroradical surgery for patients with ovarian cancer, (iii) radiation/chemotherapy within 30 days and 100 days after surgery and (iv) time from surgery to first oncological treatment.

Results

In the group of patients with ovarian cancer, more patients with a psychiatric disorder received macroradical surgery versus patients without a psychiatric disorder, corresponding to an adjusted odds ratio of 1.24 (95% confidence interval 0.62–2.41) and the chance for having oncological treatment within 100 days was odds ratio = 1.26 (95% confidence interval 0.77–2.10). As for patients with endometrial cancer, all outcome estimates were close to unity. The adjusted odds ratio for oncological treatment within 30 days after surgery in patients with cervical cancer with a history of psychiatric disorder was 0.20 (95% confidence interval 0.03–1.54).

Conclusions

We did not find any significant differences in the treatment of ovarian and endometrial cancer in patients with pre-existing psychiatric diagnoses. When it comes to oncological treatment, we suggest that increased attention should be paid to patients with cervical cancer having a pre-existing psychiatric diagnosis.  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-23

京公网安备 11010802026262号