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   1314229篇
  免费   96863篇
  国内免费   2082篇
耳鼻咽喉   18709篇
儿科学   43709篇
妇产科学   38771篇
基础医学   191724篇
口腔科学   35865篇
临床医学   114552篇
内科学   258075篇
皮肤病学   26909篇
神经病学   102907篇
特种医学   50829篇
外国民族医学   368篇
外科学   201496篇
综合类   26950篇
现状与发展   1篇
一般理论   349篇
预防医学   98087篇
眼科学   29457篇
药学   100278篇
  1篇
中国医学   2529篇
肿瘤学   71608篇
  2018年   12896篇
  2016年   10906篇
  2015年   12541篇
  2014年   17312篇
  2013年   26427篇
  2012年   36487篇
  2011年   39055篇
  2010年   22896篇
  2009年   21548篇
  2008年   37655篇
  2007年   40698篇
  2006年   41175篇
  2005年   40414篇
  2004年   38740篇
  2003年   37533篇
  2002年   37010篇
  2001年   58423篇
  2000年   59899篇
  1999年   51029篇
  1998年   14674篇
  1997年   13140篇
  1996年   13349篇
  1995年   12572篇
  1994年   11974篇
  1993年   11069篇
  1992年   41167篇
  1991年   40533篇
  1990年   40018篇
  1989年   38861篇
  1988年   36250篇
  1987年   35500篇
  1986年   33861篇
  1985年   32261篇
  1984年   24054篇
  1983年   20932篇
  1982年   12487篇
  1981年   11047篇
  1979年   22720篇
  1978年   15946篇
  1977年   13792篇
  1976年   13014篇
  1975年   14251篇
  1974年   16728篇
  1973年   16118篇
  1972年   15361篇
  1971年   14259篇
  1970年   13253篇
  1969年   12755篇
  1968年   12006篇
  1967年   10497篇
排序方式: 共有10000条查询结果,搜索用时 11 毫秒
1.
2.
PurposeUnderstanding the value of genetic screening and testing for monogenic disorders requires high-quality, methodologically robust economic evaluations. This systematic review sought to assess the methodological quality among such studies and examined opportunities for improvement.MethodsWe searched PubMed, Cochrane, Embase, and Web of Science for economic evaluations of genetic screening/testing (2013-2019). Methodological rigor and adherence to best practices were systematically assessed using the British Medical Journal checklist.ResultsAcross the 47 identified studies, there were substantial variations in modeling approaches, reporting detail, and sophistication. Models ranged from simple decision trees to individual-level microsimulations that compared between 2 and >20 alternative interventions. Many studies failed to report sufficient detail to enable replication or did not justify modeling assumptions, especially for costing methods and utility values. Meta-analyses, systematic reviews, or calibration were rarely used to derive parameter estimates. Nearly all studies conducted some sensitivity analysis, and more sophisticated studies implemented probabilistic sensitivity/uncertainty analysis, threshold analysis, and value of information analysis.ConclusionWe describe a heterogeneous body of work and present recommendations and exemplar studies across the methodological domains of (1) perspective, scope, and parameter selection; (2) use of uncertainty/sensitivity analyses; and (3) reporting transparency for improvement in the economic evaluation of genetic screening/testing.  相似文献   
3.
4.
5.
Abstract

Purpose

Financial hardship can be a major cause of distress among persons with cancer, resulting in chronic stress and impacting physical and emotional health. This paper provides an analysis of the lived experience of cancer patients’ financial hardship from diagnosis to post-treatment.  相似文献   
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.
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