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   4330987篇
  免费   343013篇
  国内免费   22115篇
耳鼻咽喉   59562篇
儿科学   136187篇
妇产科学   111620篇
基础医学   663338篇
口腔科学   115462篇
临床医学   397057篇
内科学   775959篇
皮肤病学   107141篇
神经病学   355092篇
特种医学   167538篇
外国民族医学   567篇
外科学   657797篇
综合类   141376篇
现状与发展   52篇
一般理论   2572篇
预防医学   361166篇
眼科学   101821篇
药学   307691篇
  148篇
中国医学   18949篇
肿瘤学   215020篇
  2021年   62186篇
  2020年   40296篇
  2019年   62424篇
  2018年   77708篇
  2017年   60164篇
  2016年   65809篇
  2015年   80682篇
  2014年   116297篇
  2013年   181057篇
  2012年   130155篇
  2011年   136160篇
  2010年   132045篇
  2009年   131890篇
  2008年   119155篇
  2007年   126251篇
  2006年   134332篇
  2005年   129014篇
  2004年   127814篇
  2003年   118108篇
  2002年   106764篇
  2001年   152181篇
  2000年   146736篇
  1999年   136158篇
  1998年   71121篇
  1997年   67332篇
  1996年   65191篇
  1995年   60459篇
  1994年   54449篇
  1993年   50479篇
  1992年   96653篇
  1991年   93193篇
  1990年   89531篇
  1989年   87260篇
  1988年   80417篇
  1987年   78832篇
  1986年   74140篇
  1985年   73200篇
  1984年   61811篇
  1983年   55532篇
  1982年   46079篇
  1981年   43168篇
  1980年   40537篇
  1979年   53154篇
  1978年   44056篇
  1977年   38908篇
  1976年   36285篇
  1975年   36292篇
  1974年   39439篇
  1973年   37650篇
  1972年   35263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