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   4349174篇
  免费   357953篇
  国内免费   15743篇
耳鼻咽喉   60531篇
儿科学   137488篇
妇产科学   115840篇
基础医学   662804篇
口腔科学   122334篇
临床医学   391672篇
内科学   793135篇
皮肤病学   111233篇
神经病学   368562篇
特种医学   170296篇
外国民族医学   897篇
外科学   664805篇
综合类   128128篇
现状与发展   24篇
一般理论   2570篇
预防医学   354306篇
眼科学   101113篇
药学   306704篇
  23篇
中国医学   13104篇
肿瘤学   217301篇
  2021年   56750篇
  2020年   38306篇
  2019年   64434篇
  2018年   77820篇
  2017年   61193篇
  2016年   67579篇
  2015年   80921篇
  2014年   115259篇
  2013年   180951篇
  2012年   119817篇
  2011年   123002篇
  2010年   127273篇
  2009年   128719篇
  2008年   109297篇
  2007年   115682篇
  2006年   124849篇
  2005年   119721篇
  2004年   120858篇
  2003年   111131篇
  2002年   100918篇
  2001年   159673篇
  2000年   154914篇
  1999年   142721篇
  1998年   71088篇
  1997年   67455篇
  1996年   65062篇
  1995年   60435篇
  1994年   54453篇
  1993年   50629篇
  1992年   102790篇
  1991年   97787篇
  1990年   93559篇
  1989年   91478篇
  1988年   84909篇
  1987年   82941篇
  1986年   79028篇
  1985年   77207篇
  1984年   65451篇
  1983年   58113篇
  1982年   47574篇
  1981年   44125篇
  1980年   41622篇
  1979年   56728篇
  1978年   46263篇
  1977年   41254篇
  1976年   37761篇
  1975年   38046篇
  1974年   41716篇
  1973年   40332篇
  1972年   38190篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
61.
62.
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   
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