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   1394054篇
  免费   102233篇
  国内免费   2484篇
耳鼻咽喉   19506篇
儿科学   45852篇
妇产科学   39865篇
基础医学   202751篇
口腔科学   37614篇
临床医学   120152篇
内科学   276131篇
皮肤病学   27901篇
神经病学   110590篇
特种医学   53760篇
外国民族医学   368篇
外科学   214840篇
综合类   28113篇
现状与发展   2篇
一般理论   461篇
预防医学   103375篇
眼科学   32148篇
药学   106107篇
  2篇
中国医学   2729篇
肿瘤学   76504篇
  2018年   14698篇
  2017年   11036篇
  2016年   12470篇
  2015年   14397篇
  2014年   19934篇
  2013年   29856篇
  2012年   41910篇
  2011年   44813篇
  2010年   26135篇
  2009年   24481篇
  2008年   42751篇
  2007年   46083篇
  2006年   46189篇
  2005年   45417篇
  2004年   43608篇
  2003年   42009篇
  2002年   41269篇
  2001年   59190篇
  2000年   60377篇
  1999年   51789篇
  1998年   15587篇
  1997年   13911篇
  1996年   13951篇
  1995年   13220篇
  1994年   12509篇
  1993年   11590篇
  1992年   41605篇
  1991年   40914篇
  1990年   40365篇
  1989年   39156篇
  1988年   36567篇
  1987年   35781篇
  1986年   34098篇
  1985年   32589篇
  1984年   24449篇
  1983年   21300篇
  1982年   13043篇
  1981年   11507篇
  1979年   22965篇
  1978年   16204篇
  1977年   14067篇
  1976年   13252篇
  1975年   14461篇
  1974年   16945篇
  1973年   16320篇
  1972年   15509篇
  1971年   14377篇
  1970年   13339篇
  1969年   12857篇
  1968年   12094篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
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   
7.
8.
9.
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   

10.
We report a case of benign lymphoplasmacytic plaque (LPP) in a child. These asymptomatic erythematous papulonodular lesions are an emerging clinicopathological entity. Herein, we describe a previously unreported site for LPP lesions, namely, the volar wrist and the distal ipsilateral palm.  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