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   1338304篇
  免费   98628篇
  国内免费   2162篇
耳鼻咽喉   18658篇
儿科学   44137篇
妇产科学   38875篇
基础医学   195545篇
口腔科学   36761篇
临床医学   114949篇
内科学   264502篇
皮肤病学   27409篇
神经病学   105147篇
特种医学   52001篇
外国民族医学   367篇
外科学   206518篇
综合类   27334篇
现状与发展   1篇
一般理论   366篇
预防医学   98313篇
眼科学   30616篇
药学   102097篇
  2篇
中国医学   2550篇
肿瘤学   72946篇
  2018年   13306篇
  2016年   11256篇
  2015年   13010篇
  2014年   18072篇
  2013年   27257篇
  2012年   38184篇
  2011年   40644篇
  2010年   23907篇
  2009年   22409篇
  2008年   39351篇
  2007年   42653篇
  2006年   43195篇
  2005年   42171篇
  2004年   40652篇
  2003年   39149篇
  2002年   38641篇
  2001年   58640篇
  2000年   59974篇
  1999年   51273篇
  1998年   15006篇
  1997年   13482篇
  1996年   13654篇
  1995年   12884篇
  1994年   12186篇
  1993年   11276篇
  1992年   41292篇
  1991年   40660篇
  1990年   40119篇
  1989年   38945篇
  1988年   36357篇
  1987年   35562篇
  1986年   33948篇
  1985年   32371篇
  1984年   24208篇
  1983年   21125篇
  1982年   12732篇
  1981年   11270篇
  1980年   10516篇
  1979年   22834篇
  1978年   16109篇
  1977年   13904篇
  1976年   13096篇
  1975年   14306篇
  1974年   16782篇
  1973年   16164篇
  1972年   15386篇
  1971年   14283篇
  1970年   13270篇
  1969年   12778篇
  1968年   12007篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
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   
9.
Journal of Neuro-Oncology - Adjuvant radiation is often used in patients with low grade gliomas with high-risk characteristics with a recommended dose of 45–54&nbsp;Gy. We used the...  相似文献   
10.
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   

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