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   5424543篇
  免费   409486篇
  国内免费   16171篇
耳鼻咽喉   76428篇
儿科学   174353篇
妇产科学   145267篇
基础医学   801512篇
口腔科学   153410篇
临床医学   504077篇
内科学   989278篇
皮肤病学   126380篇
神经病学   449763篇
特种医学   211355篇
外国民族医学   1184篇
外科学   805485篇
综合类   151838篇
现状与发展   25篇
一般理论   3107篇
预防医学   458033篇
眼科学   128635篇
药学   387123篇
  29篇
中国医学   13788篇
肿瘤学   269130篇
  2021年   57723篇
  2019年   59863篇
  2018年   77823篇
  2017年   59754篇
  2016年   66179篇
  2015年   78277篇
  2014年   112882篇
  2013年   178758篇
  2012年   155361篇
  2011年   166305篇
  2010年   135680篇
  2009年   134020篇
  2008年   151007篇
  2007年   163221篇
  2006年   169052篇
  2005年   163559篇
  2004年   163702篇
  2003年   152997篇
  2002年   141528篇
  2001年   215694篇
  2000年   213581篇
  1999年   189943篇
  1998年   78301篇
  1997年   72292篇
  1996年   70542篇
  1995年   66070篇
  1994年   59976篇
  1993年   55624篇
  1992年   142443篇
  1991年   137602篇
  1990年   133012篇
  1989年   128938篇
  1988年   119201篇
  1987年   117099篇
  1986年   110814篇
  1985年   107674篇
  1984年   86255篇
  1983年   75695篇
  1982年   54704篇
  1981年   50360篇
  1980年   47318篇
  1979年   77157篇
  1978年   59515篇
  1977年   51893篇
  1976年   48226篇
  1975年   49959篇
  1974年   56896篇
  1973年   54942篇
  1972年   51594篇
  1971年   47869篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
ABSTRACT

A monocausal bacteriological understanding of infectious disease orients tuberculosis control efforts towards antimicrobial interventions. A bias towards technological solutions can leave multistranded public health and social interventions largely neglected. In the context of globalising biomedical approaches to infectious disease control, this ethnography-inspired review article reflects upon the implementation of rapid diagnostic technology in low- and middle-income countries. Fieldwork observations in Vietnam provided a stimulus for a critical review of the global rollout of tuberculosis diagnostic technology. To address local needs in tuberculosis control, health managers in resource-poor settings are readily cooperating with international donors to deploy novel diagnostic technologies throughout national tuberculosis programme facilities. Increasing investment in new diagnostic technologies is predicated on the supposition that these interventions will ameliorate disease outcomes. However, suboptimal treatment control persists even when accurate diagnostic technologies are available, suggesting that promotion of singular technological solutions can distract from addressing systemic change, without which disease susceptibility, propagation of infection, detection gaps, diagnostic delays, and treatment shortfalls persist.  相似文献   
62.
63.
64.
65.
66.
67.
68.
69.
70.

Background

Nursing Home Compare (NHC) ratings, created and maintained by Medicare, are used by both hospitals and consumers to aid in the skilled nursing facility (SNF) selection process. To date, no studies have linked NHC ratings to actual episode-based outcomes. The purpose of this study was to evaluate whether NHC ratings are valid predictors of 90-day complications, readmission, and bundle costs for patients discharged to an SNF after primary total joint arthroplasty (TJA).

Methods

All SNF-discharged primary TJA cases in 2017 at a multihospital academic health system were queried. Demographic, psychosocial, and clinical variables were manually extracted from the health record. Medicare NHC ratings were then collected for each SNF. For patients in the Medicare bundle, postacute and total bundle cost was extracted from claims.

Results

Four hundred eighty-eight patients were discharged to a total of 105 unique SNFs. In multivariate analysis, overall NHC rating was not predictive of 90-day readmission/major complications, >75th percentile postacute cost, or 90-day bundle cost exceeding the target price. SNF health inspection and quality measure ratings were also not predictive of 90-day readmission/major complications or bundle performance. A higher SNF staffing rating was independently associated with a decreased odds for >75th percentile 90-day postacute spend (odds ratio, 0.58; P = .01) and a 90-day bundle cost exceeding the target price (odds ratio = 0.69; P = .02) but was similarly not predictive of 90-day readmission/complications.

Conclusion

Results of our study suggest that Medicare's NHC tool is not a useful predictor of 90-day costs, complications, or readmissions for SNFs within our health system.  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