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   706666篇
  免费   36945篇
  国内免费   992篇
耳鼻咽喉   9289篇
儿科学   22543篇
妇产科学   16922篇
基础医学   116950篇
口腔科学   18502篇
临床医学   60361篇
内科学   137539篇
皮肤病学   17725篇
神经病学   48832篇
特种医学   23830篇
外国民族医学   83篇
外科学   100204篇
综合类   8579篇
现状与发展   2篇
一般理论   154篇
预防医学   55618篇
眼科学   15571篇
药学   53556篇
  1篇
中国医学   1871篇
肿瘤学   36471篇
  2021年   8065篇
  2019年   8036篇
  2018年   11597篇
  2017年   7752篇
  2016年   8462篇
  2015年   9254篇
  2014年   12310篇
  2013年   17985篇
  2012年   27411篇
  2011年   29870篇
  2010年   16642篇
  2009年   14266篇
  2008年   25819篇
  2007年   28041篇
  2006年   26978篇
  2005年   26256篇
  2004年   24817篇
  2003年   23782篇
  2002年   22814篇
  2001年   27641篇
  2000年   28618篇
  1999年   23426篇
  1998年   6444篇
  1997年   5245篇
  1996年   5201篇
  1995年   4819篇
  1992年   16406篇
  1991年   17691篇
  1990年   17568篇
  1989年   17033篇
  1988年   15576篇
  1987年   15373篇
  1986年   14335篇
  1985年   13703篇
  1984年   10178篇
  1983年   8655篇
  1982年   4579篇
  1979年   9613篇
  1978年   6840篇
  1977年   5554篇
  1976年   5900篇
  1975年   7111篇
  1974年   7989篇
  1973年   7772篇
  1972年   7115篇
  1971年   6824篇
  1970年   6375篇
  1969年   5978篇
  1968年   5621篇
  1967年   5029篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Molnár  B.  Aroca  S.  Dobos  A.  Orbán  K.  Szabó  J.  Windisch  P.  Stähli  A.  Sculean  A. 《Clinical oral investigations》2022,26(12):7135-7142
Clinical Oral Investigations - To evaluate t he long-term outcomes following treatment of RT 1 multiple adjacent gingival recessions (MAGR) using the modified coronally advanced tunnel (MCAT) with...  相似文献   
2.
Journal of Behavioral Medicine - Evidence supports the use of graphic warnings to educate the public about the health harms of smoking and suggests warnings eliciting negative emotional responses...  相似文献   
3.
The adrenal cortex gives rise to a biologically heterogenous group of neoplasms, each with a distinct morphology, antigen expression and molecular profile. Adrenal cortical adenomas have excellent prognosis and are usually cured by surgical resection alone, while adrenal cortical carcinomas are very aggressive tumors with a poor prognosis regardless of therapy. These tumors are rare and often challenging for a pathologist to diagnose, as significant overlap exists between benign and malignant lesions in some cases. In this review, we attempt to summarize most important histologic and clinical features of adrenal cortical adenomas and carcinomas, clarify the use of different grading systems, the use of special stains and the differential diagnosis for practicing pathologists. Most relevant hereditary syndromes associated with adrenal cortical tumors are listed. Updates in molecular alterations in adrenal cortical neoplasms and hyperplastic diseases as well as their clinical significance and potential therapeutic implications are also discussed.  相似文献   
4.
5.
6.
Inflammatory bowel disease (IBD) is a chronic disease that requires chronic treatment throughout the evolution of the disease, with a complex physiopathology that entails great challenges for the development of new and specific treatments for ulcerative colitis and Crohn´s disease. The anti-tumor necrosis factor alpha therapy has impacted the clinical course of IBD in those patients who do not respond to conventional treatment, so there is a need to develop new therapies and markers of treatment response. Various pathways involved in the development of the disease are known and the new therapies have focused on blocking the inflammatory process at the gastrointestinal level by oral, intravenous, subcutaneous, and topical route. All these new therapies can lead to more personalized treatments with higher success rates and fewer relapses. These treatments have not only focused on clinical remission, but also on achieving macroscopic changes at the endoscopic level and microscopic changes by achieving mucosal healing. These treatments are mainly based on modifying signaling pathways, by blocking receptors or ligands, reducing cell migration and maintaining the integrity of the epithelial barrier. Therefore, this review presents the efficacy and safety of the new treatments that are currently under study and the advances that have been made in this area in recent years.  相似文献   
7.
8.
Journal of Immigrant and Minority Health - COVID-19 has disproportionally affected underrepresented minorities (URM) and low-income immigrants in the United States. The aim of the study is to...  相似文献   
9.
10.
Breast pseudoaneurysms after a core needle biopsy are a rare complication with a low incidence. However, it is important to be aware of the possibility of complications that require treatment.  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