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   9394篇
  免费   523篇
  国内免费   44篇
耳鼻咽喉   144篇
儿科学   309篇
妇产科学   181篇
基础医学   1182篇
口腔科学   232篇
临床医学   713篇
内科学   2432篇
皮肤病学   163篇
神经病学   1068篇
特种医学   447篇
外科学   1241篇
综合类   31篇
一般理论   8篇
预防医学   509篇
眼科学   169篇
药学   564篇
中国医学   25篇
肿瘤学   543篇
  2023年   69篇
  2022年   224篇
  2021年   389篇
  2020年   219篇
  2019年   303篇
  2018年   373篇
  2017年   257篇
  2016年   259篇
  2015年   320篇
  2014年   402篇
  2013年   455篇
  2012年   737篇
  2011年   753篇
  2010年   404篇
  2009年   353篇
  2008年   632篇
  2007年   533篇
  2006年   455篇
  2005年   502篇
  2004年   461篇
  2003年   350篇
  2002年   327篇
  2001年   123篇
  2000年   127篇
  1999年   106篇
  1998年   63篇
  1997年   61篇
  1996年   45篇
  1995年   43篇
  1994年   34篇
  1993年   28篇
  1992年   51篇
  1991年   43篇
  1990年   43篇
  1989年   45篇
  1988年   43篇
  1987年   35篇
  1986年   34篇
  1985年   33篇
  1984年   28篇
  1983年   21篇
  1982年   12篇
  1981年   21篇
  1978年   9篇
  1973年   9篇
  1972年   13篇
  1971年   12篇
  1970年   11篇
  1968年   11篇
  1967年   8篇
排序方式: 共有9961条查询结果,搜索用时 15 毫秒
1.
2.
Obesity Surgery - Laparoscopic sleeve gastrectomy (LSG) is increasingly playing a key role in obesity management. Such operations, however, carry complications sometimes including leaks. The...  相似文献   
3.
4.
Clinical Rheumatology - We aimed to estimate the frequency of overlap of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) with systemic autoimmune diseases. Retrospective...  相似文献   
5.
6.
Purpose:This study assessed the regeneration potential of mesenchymal stem cells (MSC) from adipose tissue associated with platelet-rich plasma (PRP) in bone regeneration.Methods:Thirty Wistar rats (Rattus norvegicus albinos) were divided into five groups (according to the grafting material and time to euthanasia): (1) autograft - 14 days (control), (2) autograft - 28 days (control), (3) MSC + PRP - 14 days, (4) MSC + PRP + papaverine - 14 days and (5) MSC + PRP + papaverine - 28 days. After euthanasia, the graft was removed and histological slides were prepared. They were assessed by a blinded pathologist using a previously published histological scale as parameter.Results:There was some degree of neoformed bone trabeculae (NBT) in 93.3% of the samples, as well as osteoblastic activity (OA). The autograft groups (14 and 28 days) had higher levels in the formation of bone trabeculae. Nonparametric data were analyzed using the Wilcoxon-Mann-Whitney test and proved not to be statistically significant at p < 0.05.Conclusions:Experimental parietal bone reconstruction, combining MSC, PRP and papaverine presented regeneration in all groups with no significant difference among them.Key words: Bone Regeneration, Platelet-Rich Plasma, Tissue Engineering, Rats  相似文献   
7.
8.
Introduction: Nanoparticle albumin-bound paclitaxel (nab-paclitaxel), a microtubule inhibitor, has demonstrated clinical efficacy in the treatment of advanced non-small cell lung cancer (NSCLC) either as monotherapy or in combination. Nab-paclitaxel was developed to reduce the toxicities associated with solvent-bound paclitaxel (sb-paclitaxel).

Areas covered: This review first focuses on the clinical trials evaluating the efficacy and tolerability of nab-paclitaxel in NSCLC at different settings. The approval of nab-paclitaxel in combination with carboplatin at the front-line setting for advanced NSCLC was based on the key phase III study, which showed that nab-paclitaxel/carboplatin was associated with superior overall response rate and favorable toxicity profile compared to sb-paclitaxel/carboplatin. The review also addresses the nab-paclitaxel pharmacology, other combinations (e.g. immunotherapy with PD-1/PD-L1 inhibitors), potential biomarkers (e.g. caveolin-1), and special subgroups (e.g. the elderly, squamous histology).

Expert opinion: Existing data has established the role of nab-paclitaxel in the management of advanced NSCLC. Emerging evidence, such as preliminary results from Keynote-407 and IMpower 131 studies, indicates that novel combinations of nab-paclitaxel/carboplatin and PD-1/PD-L1 inhibitors could further improve clinical benefits with manageable toxicity. Nevertheless, in order to better position nab-paclitaxel and to improve patient selection, future studies are warranted to further understand its mechanism of action, predictive biomarkers, and potential synergism with other agents.  相似文献   

9.
10.

Background  

Pneumococcal diseases remain a major cause of morbidity and mortality worldwide. Updated data on drug-resistance from different populations may be important to recognize changes in disease patterns. This study assessed current levels of penicilin resistance among Streptococcus Pneumoniae causing pneumonia in Spanish middle age and older adults.  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