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   81729篇
  免费   3978篇
  国内免费   328篇
耳鼻咽喉   1053篇
儿科学   2244篇
妇产科学   2020篇
基础医学   10841篇
口腔科学   2996篇
临床医学   5948篇
内科学   20087篇
皮肤病学   1681篇
神经病学   7087篇
特种医学   2501篇
外国民族医学   6篇
外科学   9739篇
综合类   435篇
一般理论   28篇
预防医学   8495篇
眼科学   1331篇
药学   5390篇
中国医学   305篇
肿瘤学   3848篇
  2023年   511篇
  2022年   853篇
  2021年   2228篇
  2020年   1195篇
  2019年   1935篇
  2018年   3985篇
  2017年   2447篇
  2016年   1842篇
  2015年   1939篇
  2014年   2700篇
  2013年   3554篇
  2012年   5414篇
  2011年   5809篇
  2010年   3133篇
  2009年   2603篇
  2008年   4652篇
  2007年   4833篇
  2006年   4434篇
  2005年   4461篇
  2004年   4065篇
  2003年   3800篇
  2002年   3545篇
  2001年   1908篇
  2000年   2037篇
  1999年   1663篇
  1998年   614篇
  1997年   402篇
  1996年   392篇
  1995年   334篇
  1994年   289篇
  1993年   283篇
  1992年   830篇
  1991年   671篇
  1990年   639篇
  1989年   538篇
  1988年   484篇
  1987年   506篇
  1986年   435篇
  1985年   382篇
  1984年   286篇
  1983年   240篇
  1979年   204篇
  1978年   176篇
  1975年   183篇
  1974年   186篇
  1973年   174篇
  1972年   176篇
  1971年   168篇
  1970年   153篇
  1968年   153篇
排序方式: 共有10000条查询结果,搜索用时 31 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.
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   
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