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   4340189篇
  免费   345419篇
  国内免费   21908篇
耳鼻咽喉   58957篇
儿科学   134371篇
妇产科学   112835篇
基础医学   657416篇
口腔科学   120453篇
临床医学   396288篇
内科学   772166篇
皮肤病学   107236篇
神经病学   356135篇
特种医学   169551篇
外国民族医学   461篇
外科学   657933篇
综合类   150863篇
现状与发展   57篇
一般理论   2502篇
预防医学   359071篇
眼科学   103280篇
药学   310341篇
  213篇
中国医学   20947篇
肿瘤学   216440篇
  2021年   61141篇
  2020年   40032篇
  2019年   61695篇
  2018年   76728篇
  2017年   59945篇
  2016年   65226篇
  2015年   80418篇
  2014年   115852篇
  2013年   181837篇
  2012年   126213篇
  2011年   130212篇
  2010年   130955篇
  2009年   131710篇
  2008年   113147篇
  2007年   119298篇
  2006年   127343篇
  2005年   121102篇
  2004年   121270篇
  2003年   110799篇
  2002年   99411篇
  2001年   157136篇
  2000年   151511篇
  1999年   139776篇
  1998年   71448篇
  1997年   67394篇
  1996年   65072篇
  1995年   60544篇
  1994年   54626篇
  1993年   50741篇
  1992年   101055篇
  1991年   96870篇
  1990年   92715篇
  1989年   90609篇
  1988年   83840篇
  1987年   81856篇
  1986年   77603篇
  1985年   76199篇
  1984年   64592篇
  1983年   57586篇
  1982年   47190篇
  1981年   44035篇
  1980年   41421篇
  1979年   55907篇
  1978年   45468篇
  1977年   40775篇
  1976年   37422篇
  1975年   37146篇
  1974年   41001篇
  1973年   39468篇
  1972年   37068篇
排序方式: 共有10000条查询结果,搜索用时 15 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