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   1074791篇
  免费   73351篇
  国内免费   1361篇
耳鼻咽喉   15029篇
儿科学   34651篇
妇产科学   28665篇
基础医学   153636篇
口腔科学   29569篇
临床医学   95024篇
内科学   203877篇
皮肤病学   24435篇
神经病学   81638篇
特种医学   43088篇
外国民族医学   201篇
外科学   163269篇
综合类   21738篇
现状与发展   1篇
一般理论   283篇
预防医学   74802篇
眼科学   24521篇
药学   86187篇
  7篇
中国医学   2805篇
肿瘤学   66077篇
  2019年   7769篇
  2018年   11321篇
  2017年   8920篇
  2016年   10130篇
  2015年   11275篇
  2014年   15293篇
  2013年   22251篇
  2012年   30599篇
  2011年   32350篇
  2010年   18994篇
  2009年   17848篇
  2008年   29992篇
  2007年   32136篇
  2006年   32757篇
  2005年   31091篇
  2004年   29792篇
  2003年   28612篇
  2002年   27582篇
  2001年   60063篇
  2000年   61520篇
  1999年   50972篇
  1998年   12463篇
  1997年   11016篇
  1996年   11031篇
  1995年   10331篇
  1994年   9355篇
  1993年   8868篇
  1992年   37827篇
  1991年   36310篇
  1990年   35788篇
  1989年   34335篇
  1988年   30908篇
  1987年   30017篇
  1986年   28251篇
  1985年   26477篇
  1984年   19217篇
  1983年   16136篇
  1982年   8838篇
  1979年   17058篇
  1978年   11431篇
  1977年   10249篇
  1976年   8863篇
  1975年   10100篇
  1974年   11681篇
  1973年   11309篇
  1972年   10789篇
  1971年   10127篇
  1970年   9287篇
  1969年   8976篇
  1968年   7945篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
Quality of Life Research - The COVID-19 pandemic might add to the stressors experienced by people living with rheumatic diseases. This study aimed to examine rheumatic patients’ functional...  相似文献   
3.
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   
4.
5.
6.
7.
ABSTRACT

The lack of stable housing can impair access and continuity of care for patients living with human immunodeficiency virus (HIV). This study investigated the relationship between housing status assessed at multiple time points and several core HIV-related outcomes within the same group of HIV patients experiencing homelessness. Patients with consistently stable housing (CSH) during the year were compared to patients who lacked CSH (non-CSH group). The study outcomes included HIV viral load (VL), CD4 counts, and health care utilization. Multivariable and propensity weighted analyses were used to assess outcomes adjusting for potential group differences. Of 208 patients, 88 (42%) had CSH and 120 (58%) were non-CSH. Patients with CSH had significantly higher proportion of VL suppression and higher mean CD4 counts. The frequency of nurse visits in the CSH group was less than a half of that in the non-CSH group. Patients with CSH were less likely to be admitted to the medical respite facility, and if admitted, their length of stay was about a half of that for the non-CSH group. Our study findings show that patients with CSH had significantly better HIV virologic control and immune status as well as improved health care utilization.  相似文献   
8.
9.
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   
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