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   4940623篇
  免费   382990篇
  国内免费   15628篇
耳鼻咽喉   69177篇
儿科学   158159篇
妇产科学   130097篇
基础医学   741080篇
口腔科学   137227篇
临床医学   454271篇
内科学   901659篇
皮肤病学   117080篇
神经病学   413625篇
特种医学   193456篇
外国民族医学   968篇
外科学   740238篇
综合类   138983篇
现状与发展   24篇
一般理论   2809篇
预防医学   413088篇
眼科学   115801篇
药学   351844篇
  26篇
中国医学   12984篇
肿瘤学   246645篇
  2021年   56887篇
  2019年   59313篇
  2018年   76138篇
  2017年   58394篇
  2016年   64763篇
  2015年   77240篇
  2014年   111686篇
  2013年   177367篇
  2012年   140185篇
  2011年   148088篇
  2010年   130930篇
  2009年   130934篇
  2008年   133425篇
  2007年   143267篇
  2006年   150841篇
  2005年   145067篇
  2004年   145880篇
  2003年   135734篇
  2002年   124355篇
  2001年   197233篇
  2000年   194198篇
  1999年   174283篇
  1998年   75856篇
  1997年   70572篇
  1996年   68754篇
  1995年   64332篇
  1994年   58171篇
  1993年   53996篇
  1992年   128557篇
  1991年   123372篇
  1990年   118818篇
  1989年   115362篇
  1988年   106256篇
  1987年   104312篇
  1986年   98408篇
  1985年   95817篇
  1984年   77780篇
  1983年   68453篇
  1982年   51623篇
  1981年   47706篇
  1980年   44727篇
  1979年   67685篇
  1978年   53042篇
  1977年   46606篇
  1976年   43238篇
  1975年   44061篇
  1974年   48990篇
  1973年   46928篇
  1972年   43927篇
  1971年   40618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