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   92074篇
  免费   4637篇
  国内免费   506篇
耳鼻咽喉   1164篇
儿科学   2289篇
妇产科学   2071篇
基础医学   12383篇
口腔科学   2950篇
临床医学   6749篇
内科学   22653篇
皮肤病学   2229篇
神经病学   8058篇
特种医学   2811篇
外国民族医学   6篇
外科学   11875篇
综合类   497篇
一般理论   24篇
预防医学   8448篇
眼科学   1764篇
药学   6127篇
中国医学   415篇
肿瘤学   4704篇
  2023年   580篇
  2022年   1368篇
  2021年   2808篇
  2020年   1493篇
  2019年   2313篇
  2018年   4310篇
  2017年   2692篇
  2016年   2137篇
  2015年   2440篇
  2014年   3359篇
  2013年   4326篇
  2012年   6475篇
  2011年   6748篇
  2010年   3805篇
  2009年   3321篇
  2008年   5412篇
  2007年   5440篇
  2006年   5123篇
  2005年   5023篇
  2004年   4543篇
  2003年   4146篇
  2002年   3916篇
  2001年   1739篇
  2000年   1789篇
  1999年   1521篇
  1998年   702篇
  1997年   521篇
  1996年   458篇
  1995年   387篇
  1994年   337篇
  1993年   328篇
  1992年   724篇
  1991年   608篇
  1990年   579篇
  1989年   497篇
  1988年   439篇
  1987年   449篇
  1986年   413篇
  1985年   359篇
  1984年   277篇
  1983年   223篇
  1982年   156篇
  1979年   202篇
  1978年   178篇
  1976年   146篇
  1975年   154篇
  1974年   164篇
  1973年   163篇
  1972年   166篇
  1971年   154篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
International Journal of Clinical Oncology - Immune-checkpoint inhibitors (ICIs) are standard treatments for metastatic non-small cell lung cancer (NSCLC). Patients with poor performance status...  相似文献   
3.
4.
Introduction: The treatment of classical Hodgkin lymphoma (cHL) in children is a story of success. Nowadays, more than 90% of patients are cured and overall survival is nearly 100% at 5 years. Efforts have been made to avoid related effects of therapies; therefore, children are treated using different chemotherapy schemes in comparison with adults.

Areas covered: This review includes a view of the clinical classification and risk assessment in children suffering from HL. The chemotherapy more commonly employed is revisited. The use of PET/CT to evaluate the disease in order to guide therapy is analyzed. New options of chemotherapy and emerging immunotherapy are also included.

Expert opinion: In order to make the right treatment choice, a proper initial assessment of risk is mandatory. The choice of therapy in these kinds of patients must be done according to the experience of the team, and also, the cost and logistics related to the eligible scheme are very important. If possible, efforts must be made to include PET/CT in guiding therapy and avoiding overtreatment and long-term adverse effects in children. New options in immunotherapy are emerging and must be considered with caution in selected patients.  相似文献   

5.
6.
7.
8.
9.
In the current immunosuppressive therapy era, vessel thrombosis is the most common cause of early graft loss after renal transplantation. The prevalence of IgA anti–β2-glycoprotein I antibodies (IgA-aB2GPI-ab) in patients on dialysis is elevated (>30%), and these antibodies correlate with mortality and cardiovascular morbidity. To evaluate the effect of IgA-aB2GPI-ab in patients with transplants, we followed all patients transplanted from 2000 to 2002 in the Hospital 12 de Octubre prospectively for 10 years. Presence of IgA-aB2GPI-ab in pretransplant serum was examined retrospectively. Of 269 patients, 89 patients were positive for IgA-aB2GPI-ab (33%; group 1), and the remaining patients were negative (67%; group 2). Graft loss at 6 months post-transplant was significantly higher in group 1 (10 of 89 versus 3 of 180 patients in group 2; P=0.002). The most frequent cause of graft loss was thrombosis of the vessels, which was observed only in group 1 (8 of 10 versus 0 of 3 patients in group 2; P=0.04). Multivariate analysis showed that the presence of IgA-aB2GPI-ab was an independent risk factor for early graft loss (P=0.04) and delayed graft function (P=0.04). There were no significant differences regarding patient survival between the two groups. Graft survival was similar in both groups after 6 months. In conclusion, patients with pretransplant IgA-aB2GPI-ab have a high risk of early graft loss caused by thrombosis and a high risk of delayed graft function. Therefore, pretransplant IgA-aB2GPI-ab may have a detrimental effect on early clinical outcomes after renal transplantation.  相似文献   
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