全文获取类型
收费全文 | 38818篇 |
免费 | 1422篇 |
国内免费 | 198篇 |
专业分类
耳鼻咽喉 | 178篇 |
儿科学 | 2294篇 |
妇产科学 | 953篇 |
基础医学 | 1880篇 |
口腔科学 | 599篇 |
临床医学 | 3067篇 |
内科学 | 7688篇 |
皮肤病学 | 392篇 |
神经病学 | 1246篇 |
特种医学 | 893篇 |
外科学 | 5940篇 |
综合类 | 4045篇 |
预防医学 | 7395篇 |
眼科学 | 517篇 |
药学 | 2149篇 |
12篇 | |
中国医学 | 416篇 |
肿瘤学 | 774篇 |
出版年
2024年 | 21篇 |
2023年 | 345篇 |
2022年 | 660篇 |
2021年 | 1041篇 |
2020年 | 912篇 |
2019年 | 3909篇 |
2018年 | 3097篇 |
2017年 | 1560篇 |
2016年 | 528篇 |
2015年 | 695篇 |
2014年 | 1860篇 |
2013年 | 1452篇 |
2012年 | 1582篇 |
2011年 | 1665篇 |
2010年 | 1432篇 |
2009年 | 1145篇 |
2008年 | 961篇 |
2007年 | 958篇 |
2006年 | 742篇 |
2005年 | 606篇 |
2004年 | 472篇 |
2003年 | 396篇 |
2002年 | 314篇 |
2001年 | 300篇 |
2000年 | 233篇 |
1999年 | 218篇 |
1998年 | 186篇 |
1997年 | 183篇 |
1996年 | 113篇 |
1995年 | 70篇 |
1994年 | 62篇 |
1993年 | 36篇 |
1992年 | 34篇 |
1991年 | 32篇 |
1990年 | 20篇 |
1989年 | 21篇 |
1988年 | 25篇 |
1985年 | 988篇 |
1984年 | 1411篇 |
1983年 | 1051篇 |
1982年 | 1152篇 |
1981年 | 1104篇 |
1980年 | 957篇 |
1979年 | 1060篇 |
1978年 | 990篇 |
1977年 | 690篇 |
1976年 | 888篇 |
1975年 | 789篇 |
1974年 | 702篇 |
1973年 | 737篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
推进整体护理提高护理质量 总被引:3,自引:0,他引:3
介绍了四川省以点带面开展整体护理的做法,取得的成效,存在的问题与对策,并提出了下一步的工作目标与计划设想.要求转变观念,加强培训;保证人力配备,提高综合素质. 相似文献
43.
BackgroundOver the past decade, chemotherapy has been used more selectively in early breast cancer (EBC) due to better risk stratification. Neoadjuvant chemotherapy (NACT) has evolved to the primary treatment option. The type and size of hospitals is known to have a substantial influence on the kinds of treatment they provide, and therefore on patient outcomes (e.g. rates for pathological complete response, pCR), but it is not yet known how this has affected delivery of chemotherapy for EBC in Germany.MethodsThis study analyzed chemotherapy use and pCR rates after NACT for EBC patients treated at 104 German institutions 2008–2017. Institutions were separated into associated hospital type (university hospital; teaching hospital; community hospital) and annual caseload (≤100; 101–250; >250 cases/year).ResultsOverall, 124,084 patients were included, of whom 11.6% were treated at university hospitals, 63.1% at teaching hospitals, and 25.3% at community hospitals. In total, 46,274 (37.3%) received chemotherapy, of whom 44,765 had information available about systemic treatment and surgery. From 2008 to 2017, chemotherapy use declined from 48.3% to 36.4% for university hospitals, from 40.7% to 30.3% for teaching hospitals, and from 42.4% to 33.7% for community hospitals. Furthermore, the proportion of NACT increased the most in university hospitals (from 32.0% to 68.1%); whereas, the rate of pCR (defined as ypT0 ypN0) increased irrespective of institutional type. Analyses regarding annual caseload did not show any differences.ConclusionsThe results from this large, nationwide cohort reflect a more selective use of chemotherapy in Germany, irrespective of institutional type or case load. 相似文献
44.
45.
46.
47.
48.
The past decade has witnessed a new wave of hospital-physician integration, with the fraction of hospitals owning any office-based physician practice increasing from 28% in 2009 to 53% in 2015 nationwide. We offer one of the first hospital-level longitudinal analyses in examining how hospital-physician integration affects hospital prices in the modern healthcare environment. We find a robust 3–5% increase in hospital prices following integration. There is little indication that hospital quality is commensurately higher or that patient mix has changed following integration. Our supplementary analyses point to stronger bargaining leverage and foreclosure of rival hospitals as potential mechanisms for the estimated price effects. 相似文献
49.
R. Herruzo-Cabrera L. Malo-González M. E. Calle Purón M. J. Vizcaíno-Alcaide J. Del Rey-Calero 《European journal of epidemiology》1993,9(4):442-446
A cross-sectional study was performed to obtain risk factors for hepatitis B disease, HBsAg carriers and immunised personnel, among 2470 workers in a general hospital in Madrid, Spain. The data obtained were analyzed with multiple logistic regression to obtain coefficients for variables. The results of the analysis show that being a nurse or being regularly exposed to blood are the most important risk factors for hepatitis B acquisition. The length of time working at the same job activity was also a risk factor. The resulting coefficients allow the construction of a predictive equation for non-immunised, HBsAg carrier and immunised HBV status, which can select subjects for a hepatitis B vaccination program. 相似文献
50.
L. Cassano P. Lombardo R. M. Ragona A. Pastore 《European archives of oto-rhino-laryngology》2000,257(9):507-511
Laryngopyocele is a fairly rare disease. It is a complication of laryngocele. Its clinical picture is often alarming; thus
it needs fast differential diagnosis. Computed tomography allows early diagnosis. Surgical treatment permits a complete recovery.
An association between laryngocele and carcinoma of the larynx has been reported by some authors. Three new cases of laryngopyocele
are presented and discussed.
Received: 23 November 1999 / Accepted: 29 May 2000 相似文献