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   4977235篇
  免费   381621篇
  国内免费   15888篇
耳鼻咽喉   69314篇
儿科学   159872篇
妇产科学   133237篇
基础医学   746382篇
口腔科学   137276篇
临床医学   457463篇
内科学   908875篇
皮肤病学   119271篇
神经病学   415800篇
特种医学   192528篇
外国民族医学   1128篇
外科学   744354篇
综合类   140151篇
现状与发展   25篇
一般理论   2861篇
预防医学   413042篇
眼科学   117173篇
药学   353088篇
  26篇
中国医学   13503篇
肿瘤学   249375篇
  2021年   56942篇
  2019年   59397篇
  2018年   76319篇
  2017年   58678篇
  2016年   65057篇
  2015年   77373篇
  2014年   111745篇
  2013年   177481篇
  2012年   143888篇
  2011年   152116篇
  2010年   131688篇
  2009年   131550篇
  2008年   137362篇
  2007年   147325篇
  2006年   154856篇
  2005年   148932篇
  2004年   149207篇
  2003年   138951篇
  2002年   127817篇
  2001年   200040篇
  2000年   196831篇
  1999年   176384篇
  1998年   75906篇
  1997年   70650篇
  1996年   68570篇
  1995年   64038篇
  1994年   57902篇
  1993年   53626篇
  1992年   128278篇
  1991年   122369篇
  1990年   117856篇
  1989年   114471篇
  1988年   105324篇
  1987年   103287篇
  1986年   97077篇
  1985年   94662篇
  1984年   76938篇
  1983年   67764篇
  1982年   51315篇
  1981年   47357篇
  1980年   44338篇
  1979年   66530篇
  1978年   52302篇
  1977年   45909篇
  1976年   42593篇
  1975年   43133篇
  1974年   47937篇
  1973年   46027篇
  1972年   43242篇
  1971年   40033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