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   1022205篇
  免费   73299篇
  国内免费   1726篇
耳鼻咽喉   13979篇
儿科学   26707篇
妇产科学   24909篇
基础医学   144231篇
口腔科学   29893篇
临床医学   90276篇
内科学   201225篇
皮肤病学   20482篇
神经病学   81514篇
特种医学   40450篇
外国民族医学   82篇
外科学   166991篇
综合类   19048篇
现状与发展   1篇
一般理论   363篇
预防医学   69396篇
眼科学   23217篇
药学   78379篇
  3篇
中国医学   2239篇
肿瘤学   63845篇
  2021年   7442篇
  2019年   7833篇
  2018年   11287篇
  2017年   8717篇
  2016年   9574篇
  2015年   10938篇
  2014年   15111篇
  2013年   21832篇
  2012年   30983篇
  2011年   32352篇
  2010年   19040篇
  2009年   18086篇
  2008年   31094篇
  2007年   32568篇
  2006年   33147篇
  2005年   31727篇
  2004年   30784篇
  2003年   29184篇
  2002年   28408篇
  2001年   55499篇
  2000年   57055篇
  1999年   47773篇
  1998年   11878篇
  1997年   10315篇
  1996年   10283篇
  1995年   9553篇
  1994年   8819篇
  1993年   8138篇
  1992年   35887篇
  1991年   34272篇
  1990年   33033篇
  1989年   32138篇
  1988年   29252篇
  1987年   28504篇
  1986年   26515篇
  1985年   25406篇
  1984年   18119篇
  1983年   15378篇
  1982年   8111篇
  1979年   15867篇
  1978年   10720篇
  1977年   9156篇
  1976年   7948篇
  1975年   8692篇
  1974年   10521篇
  1973年   9925篇
  1972年   9402篇
  1971年   8882篇
  1970年   8449篇
  1969年   7953篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
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   
2.
3.
4.
5.
6.
7.
Vaccination is a vital health care initiative to prevent individual and population infection. To increase vaccination rates the federal government implemented the ‘No Jab, No Pay’ policy, where eligibility for several government benefits required children to be fully vaccinated by removing ‘conscientious objections’ and expanding the age range of children whose families receive benefits. This study assesses the impact of this policy at a local area within a single medical practice community in NSW, Australia. A retrospective clinical audit was performed between 2012 and 2017 on a single general practice's vaccination records for children ≤19 years. Catch-up vaccinations were assessed based on age at vaccination. Incidence of catch-up vaccinations was assessed for each of four years before and two years after the implementation of the ‘No Jab, No Pay’ policy in January 2016, along with the age of children and vaccination(s) given. Catch-up vaccinations were assessed temporally either side of implementation of ‘No Jab, No Pay’. Comparing the average annual vaccination catch-up incidence rate of 6.2% pre-implementation (2012–2015), there was an increase to 9.2% in 2016 (p < .001) and 7.8% in 2017 (p = .027). Secondary outcome measurement of catch-up vaccination incidence rates before (2012–2015) and after (2016–2017) ‘No Jab, No Pay’ implementation showed statistically significant increases for children aged 8–11 years (3.2%–5.6%, p = .038), 12–15 years (7.5%–14.7%, p < .001) and 16–19 years (3.3%–10.2%, p < .001) along with a statistically significant reduction in children aged 1–3 years (11.4%–6.2%, p = .015). Also, catch-up rates for DTPa significantly increased after program implementation. This study demonstrates that the Australian federal government vaccination policy ‘No Jab, No Pay’ was coincident with an increase in catch-up vaccinations within a rural NSW community served by one medical practice, especially for older children.  相似文献   
8.
Introduction: Percutaneous renal mass biopsy has evolved over the last decade with improvements on previous pitfalls including low tissue yield, high non-diagnostic rates, and complications. As understanding of tumor biology and natural history of renal cortical neoplasms has improved, percutaneous renal mass biopsy is poised to have an expanding role in an area characterized by individualized management and refined risk stratification.

Areas covered: This review summarizes the evolution of renal mass biopsy to its current state with respect to outcomes, indications, and clinical guidelines.

Expert opinion: With improved understanding of differential biological potential of renal cortical neoplasms combined with technical improvements in diagnostic yield and accuracy, utilization of renal mass biopsy is becoming an important adjunct to patient care in a broad range of clinical scenarios, including active surveillance, thermal ablation, and use of primary systemic therapy in localized and advanced settings.  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