全文获取类型
| 收费全文 | 4089049篇 |
| 免费 | 302880篇 |
| 国内免费 | 10342篇 |
专业分类
| 耳鼻咽喉 | 57632篇 |
| 儿科学 | 130974篇 |
| 妇产科学 | 111519篇 |
| 基础医学 | 570369篇 |
| 口腔科学 | 117277篇 |
| 临床医学 | 376903篇 |
| 内科学 | 792650篇 |
| 皮肤病学 | 91531篇 |
| 神经病学 | 339350篇 |
| 特种医学 | 159047篇 |
| 外国民族医学 | 1438篇 |
| 外科学 | 612644篇 |
| 综合类 | 91687篇 |
| 现状与发展 | 6篇 |
| 一般理论 | 1730篇 |
| 预防医学 | 326434篇 |
| 眼科学 | 95506篇 |
| 药学 | 302505篇 |
| 12篇 | |
| 中国医学 | 8078篇 |
| 肿瘤学 | 214979篇 |
出版年
| 2018年 | 44155篇 |
| 2017年 | 33926篇 |
| 2016年 | 38549篇 |
| 2015年 | 43519篇 |
| 2014年 | 61270篇 |
| 2013年 | 92827篇 |
| 2012年 | 123548篇 |
| 2011年 | 131011篇 |
| 2010年 | 78607篇 |
| 2009年 | 75007篇 |
| 2008年 | 122891篇 |
| 2007年 | 130445篇 |
| 2006年 | 132106篇 |
| 2005年 | 127734篇 |
| 2004年 | 123136篇 |
| 2003年 | 118580篇 |
| 2002年 | 115369篇 |
| 2001年 | 187390篇 |
| 2000年 | 192846篇 |
| 1999年 | 163610篇 |
| 1998年 | 48645篇 |
| 1997年 | 43392篇 |
| 1996年 | 43004篇 |
| 1995年 | 41710篇 |
| 1994年 | 38720篇 |
| 1993年 | 36226篇 |
| 1992年 | 129941篇 |
| 1991年 | 125694篇 |
| 1990年 | 121496篇 |
| 1989年 | 117402篇 |
| 1988年 | 108505篇 |
| 1987年 | 106890篇 |
| 1986年 | 100944篇 |
| 1985年 | 96717篇 |
| 1984年 | 72735篇 |
| 1983年 | 62131篇 |
| 1982年 | 37412篇 |
| 1981年 | 33659篇 |
| 1979年 | 66801篇 |
| 1978年 | 47279篇 |
| 1977年 | 40064篇 |
| 1976年 | 37524篇 |
| 1975年 | 39624篇 |
| 1974年 | 48029篇 |
| 1973年 | 45843篇 |
| 1972年 | 43141篇 |
| 1971年 | 39949篇 |
| 1970年 | 37317篇 |
| 1969年 | 35295篇 |
| 1968年 | 32463篇 |
排序方式： 共有10000条查询结果，搜索用时 15 毫秒
31.
ABSTRACTA 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
32.
33.
34.
35.
36.
37.
38.
39.
Daniel J. Snyder Thomas R. Kroshus Aakash Keswani Evan B. Garden Karl M. Koenig Kevin J. Bozic David S. Jevsevar Jashvant Poeran Calin S. Moucha 《The Journal of arthroplasty》2019,34(4):613-618
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40.
Joseph M. Northey Kate L. Pumpa Clare Quinlan Ashley Ikin Kellie Toohey Disa J. Smee Ben Rattray 《Journal of Science and Medicine in Sport》2019,22(5):580-585