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   3603135篇
  免费   308213篇
  国内免费   14863篇
耳鼻咽喉   49571篇
儿科学   114427篇
妇产科学   93241篇
基础医学   565281篇
口腔科学   95220篇
临床医学   330389篇
内科学   647613篇
皮肤病学   97563篇
神经病学   312020篇
特种医学   141002篇
外国民族医学   490篇
外科学   559188篇
综合类   107868篇
现状与发展   92篇
一般理论   2347篇
预防医学   299907篇
眼科学   82733篇
药学   243230篇
  22篇
中国医学   10521篇
肿瘤学   173486篇
  2021年   56499篇
  2020年   37641篇
  2019年   59064篇
  2018年   74996篇
  2017年   58047篇
  2016年   64262篇
  2015年   77947篇
  2014年   114926篇
  2013年   180038篇
  2012年   102774篇
  2011年   103444篇
  2010年   122827篇
  2009年   128497篇
  2008年   90109篇
  2007年   93033篇
  2006年   104217篇
  2005年   98508篇
  2004年   99309篇
  2003年   89475篇
  2002年   78827篇
  2001年   119458篇
  2000年   112497篇
  1999年   108573篇
  1998年   68175篇
  1997年   65491篇
  1996年   62982篇
  1995年   58363篇
  1994年   51995篇
  1993年   48402篇
  1992年   74527篇
  1991年   70290篇
  1990年   65919篇
  1989年   64746篇
  1988年   59626篇
  1987年   58329篇
  1986年   54879篇
  1985年   54586篇
  1984年   49596篇
  1983年   45148篇
  1982年   42247篇
  1981年   39599篇
  1980年   37294篇
  1979年   40256篇
  1978年   35603篇
  1977年   32325篇
  1976年   29648篇
  1975年   27970篇
  1974年   29038篇
  1973年   28050篇
  1972年   26264篇
排序方式: 共有10000条查询结果,搜索用时 8 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