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   72830篇
  免费   5685篇
  国内免费   3344篇
耳鼻咽喉   394篇
儿科学   1432篇
妇产科学   977篇
基础医学   10112篇
口腔科学   764篇
临床医学   6006篇
内科学   21466篇
皮肤病学   775篇
神经病学   3467篇
特种医学   1426篇
外国民族医学   10篇
外科学   4933篇
综合类   10518篇
现状与发展   14篇
预防医学   4807篇
眼科学   1042篇
药学   7999篇
  18篇
中国医学   2892篇
肿瘤学   2807篇
  2023年   797篇
  2022年   1525篇
  2021年   1950篇
  2020年   1972篇
  2019年   2634篇
  2018年   2483篇
  2017年   2452篇
  2016年   2628篇
  2015年   2759篇
  2014年   4437篇
  2013年   4878篇
  2012年   4149篇
  2011年   4678篇
  2010年   3549篇
  2009年   3343篇
  2008年   3358篇
  2007年   3674篇
  2006年   3382篇
  2005年   2849篇
  2004年   2455篇
  2003年   2245篇
  2002年   1933篇
  2001年   1820篇
  2000年   1486篇
  1999年   1303篇
  1998年   1153篇
  1997年   1117篇
  1996年   914篇
  1995年   914篇
  1994年   775篇
  1993年   634篇
  1992年   569篇
  1991年   457篇
  1990年   368篇
  1989年   324篇
  1988年   304篇
  1987年   258篇
  1986年   215篇
  1985年   583篇
  1984年   667篇
  1983年   521篇
  1982年   497篇
  1981年   468篇
  1980年   418篇
  1979年   357篇
  1978年   318篇
  1977年   232篇
  1976年   257篇
  1975年   255篇
  1974年   201篇
排序方式: 共有10000条查询结果,搜索用时 11 毫秒
1.
2.
陈红亮 《中医学报》2016,(6):910-912
目的:观察理筋通督手法治疗颈性眩晕的临床疗效。方法:将120例颈性眩晕患者随机分成3组,理筋通督组、传统手法组及安慰剂组。理筋通督组采用理筋通督手法;传统手法组采用传统手法;安慰剂组口服维生素C。结果:理筋通督手法可显著减缓患者基底动脉舒张期最低血流速度(P0.05)。理筋通督组有效率为93.67%,传统手法组有效率为67.5%,安慰剂组有效率为17.5%,3组比较差异有统计学意义(P0.05),理筋通督组明显优于其他两组。结论:理筋通督手法治疗颈性眩晕临床疗效显著。  相似文献   
3.
《Surgery (Oxford)》2020,38(4):197-203
Many women will experience one or more urinary tract infection (UTI) during their life. The most unfortunate will have many. Men presenting with infections, and women with recurrent episodes, require further investigation. A diagnosis of a UTI is often based on a typical spectrum of symptoms, with confirmatory urine cultures lagging a few days behind. Unfortunately, symptoms of a UTI may not be typical, and other conditions can manifest similarly. Treatment of UTI with antibiotics is usually required, but there is increasing awareness of the need for antimicrobial stewardship to avoid the misuse and overuse of antibiotics, even as patients are increasingly reluctant to take them. Recurrent UTI can cause significant morbidity and disruption to daily activities yet investigations rarely demonstrate a reversible cause. There are a host of different antibiotic and non-antibiotic interventions that aim to lower the risk of further infections. However, these are not reliably effective, bring side effects of their own and are often proposed to this desperate population of patients on the back of weak evidence of efficacy.  相似文献   
4.
5.
6.
Pneumonia caused by coronavirus, which originated in Wuhan, China, in late 2019, has been spread around the world already becoming a pandemic. Unfortunately, there is not yet a specific vaccine or effective antiviral drug for treating COVID-19. Many of these patients deteriorate rapidly and require intubation and are mechanically ventilated, which is causing the collapse of the health system in many countries due to lack of ventilators and intensive care beds.In this document we review two simple adjuvant therapies to administer, without side effects, and low cost that could be useful for the treatment of acute severe coronavirus infection associated with acute respiratory syndrome (SARS-CoV-2). Vitamin C, a potent antioxidant, has emerged as a relevant therapy due to its potential benefits when administered intravenous. The potential effect of vitamin C in reducing inflammation in the lungs could play a key role in lung injury caused by coronavirus infection. Another potential effective therapy is ozone: it has been extensively studied and used for many years and its effectiveness has been demonstrated so far in multiples studies. Nevertheless, our goal is not to make an exhaustive review of these therapies but spread the beneficial effects themselves.Obviously clinical trials are necessaries, but due to the potential benefit of these two therapies we highly recommended to add to the therapeutic arsenal.  相似文献   
7.
The value of adding simeprevir (SMV) vs placebo (PBO) to peginterferon and ribavirin (PR) for treatment of chronic hepatitis C virus infection was examined using patient‐reported outcomes (PROs); further, concordance of PROs with virology endpoints and adverse events (AEs) was explored. Patients (= 768 SMV/PR,= 393 PBO/PR) rated fatigue (FSS), depressive symptoms (CES‐D) and functional impairment (WPAI: Hepatitis C Productivity, Daily Activity and Absenteeism) at baseline and throughout treatment in three randomised, double‐blind trials comparing the addition of SMV or PBO during initial 12 weeks of PR. PR was administered for 48 weeks (PBO group) and 24/48 weeks (SMV group) using a response‐guided therapy (RGT) approach. Mean PRO scores (except Absenteeism) worsened from baseline to Week 4 to the same extent in both groups but reverted after Week 24 for SMV/PR and only after Week 48 for PBO/PR. Accordingly, there was a significantly lower area under the curve (baseline–Week 60, AUC60) and fewer weeks with clinically important worsening of scores in the SMV/PR group at any time point. Incidences of patients with fatigue and anaemia AEs were similar in both groups, but FSS scores showed that clinically important increases in fatigue lasted a mean of 6.9 weeks longer with PBO/PR (P < 0.001). PRO score subgroup analysis indicated better outcomes for patients who met the criteria for RGT or achieved sustained virological response 12 weeks post‐treatment (SVR12); differences in mean PRO scores associated with fibrosis level were only observed with PBO/PR. Greater efficacy of SMV/PR enabled reduced treatment duration and reduced time with PR‐related AEs without adding to AE severity.  相似文献   
8.
9.
目的分析护士分层级管理的实施对急性肝炎患者护理满意度的影响。方法该院自2018年3月起实施护士分层级管理,以该院10名肝病科护理人员为研究对象,其中2017年3月—2018年2月实施前(对照组)及2018年3月—2019年2月实施后(研究组)的管理效果。结果与对照组比较,研究组患者的病房管理、患者护理、文书书写、基础护理、入院宣教方面的护理质量评分均明显升高(P<0.05);与对照组82.29%的护理总满意率比较,研究组护理总满意率显著升高,达到了97.92%(P<0.05);与对照组工作自我满意度比较,研究组患者的自我价值体现等方面的工作自我满意度评分均明显升高(P<0.05)。结论护士分层级管理策略的实施,有效提高了急性肝炎患者护理满意度,提升了科室护理质量。  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