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   4359322篇
  免费   385844篇
  国内免费   17107篇
耳鼻咽喉   62883篇
儿科学   136383篇
妇产科学   114700篇
基础医学   666456篇
口腔科学   123252篇
临床医学   399975篇
内科学   787306篇
皮肤病学   109154篇
神经病学   373591篇
特种医学   176113篇
外国民族医学   915篇
外科学   667288篇
综合类   131216篇
现状与发展   37篇
一般理论   2653篇
预防医学   363977篇
眼科学   103973篇
药学   314610篇
  46篇
中国医学   14754篇
肿瘤学   212991篇
  2021年   54680篇
  2020年   40568篇
  2019年   66396篇
  2018年   80394篇
  2017年   62655篇
  2016年   69773篇
  2015年   84428篇
  2014年   119808篇
  2013年   186146篇
  2012年   130184篇
  2011年   132993篇
  2010年   132197篇
  2009年   132803篇
  2008年   116515篇
  2007年   122389篇
  2006年   130906篇
  2005年   125658篇
  2004年   125473篇
  2003年   115227篇
  2002年   104907篇
  2001年   155565篇
  2000年   151054篇
  1999年   138416篇
  1998年   65923篇
  1997年   62243篇
  1996年   60009篇
  1995年   61216篇
  1994年   55367篇
  1993年   51302篇
  1992年   103798篇
  1991年   99479篇
  1990年   94450篇
  1989年   92019篇
  1988年   85522篇
  1987年   84043篇
  1986年   79730篇
  1985年   78111篇
  1984年   65880篇
  1983年   58656篇
  1982年   47793篇
  1981年   44515篇
  1980年   41795篇
  1979年   57693篇
  1978年   46837篇
  1977年   41304篇
  1976年   38429篇
  1975年   37642篇
  1974年   42348篇
  1973年   40509篇
  1972年   38073篇
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
101.
102.
103.
104.
105.

Objective

The aim was to identify healthcare payment and financing reforms to promote health equity and ways that the Agency for Healthcare Research and Quality (AHRQ) may promote those reforms.

Data Sources and Study Setting

AHRQ convened a payment and financing workgroup–the authors of this paper–as part of its Health Equity Summit held in July 2022. This workgroup drew from its collective experience with healthcare payment and financing reform, as well as feedback from participants in a session at the Health Equity Summit, to identify the evidence base and promising paths for reforms to promote health equity.

Study Design

The payment and financing workgroup developed an outline of reforms to promote health equity, presented the outline to participants in the payment and financing session of the July 2022 AHRQ Health Equity Summit, and integrated feedback from the participants.

Data Collection/Extraction Methods

This paper did not require novel data collection; the authors collected the data from the existing evidence base.

Principal Findings

The paper outlines root causes of health inequity and corresponding potential reforms in five domains: (1) the differential distribution of resources between healthcare providers serving different communities, (2) scarcity of financing for populations most in need, (3) lack of integration/accountability, (4) patient cost barriers to care, and (5) bias in provider behavior and diagnostic tools.

Conclusions

Additional research is necessary to determine whether the proposed reforms are effective in promoting health equity.  相似文献   
106.
107.
108.
109.
This paper examines the propagation of COVID-19 across the Spanish provinces and assesses the effectiveness of the Spanish lockdown of the population implemented on March 14, 2020 in order to battle this pandemic. To achieve these objectives, a standard spatial econometric model used in economics is adapted to resemble the popular reproduction models employed in the epidemiological literature. In addition, we introduce a counterfactual exercise that allows us to examine the Gross domestic product (GDP) gains of bringing forward the date of the Spanish Lockdown. We find that the number of COVID-19 cases would have been reduced by 70.4% in the absence of spatial propagation between the Spanish provinces. We also determine that the lockdown prevented the propagation of the virus within and between provinces. As such, the Spanish lockdown reduced the number of potential COVID-19 cases by 82.8%. However, the number of coronavirus cases would have been reduced by an additional 11.6% if the lockdown had been brought forward to March 7, 2020. Finally, an earlier lockdown would have saved approximately 26,900,000,000 euros.  相似文献   
110.
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