全文获取类型
收费全文 | 66663篇 |
免费 | 8124篇 |
国内免费 | 323篇 |
专业分类
耳鼻咽喉 | 479篇 |
儿科学 | 1762篇 |
妇产科学 | 2856篇 |
基础医学 | 6459篇 |
口腔科学 | 1105篇 |
临床医学 | 19977篇 |
内科学 | 12431篇 |
皮肤病学 | 1000篇 |
神经病学 | 5760篇 |
特种医学 | 1771篇 |
外科学 | 7342篇 |
综合类 | 311篇 |
一般理论 | 20篇 |
预防医学 | 5332篇 |
眼科学 | 880篇 |
药学 | 3102篇 |
1篇 | |
中国医学 | 87篇 |
肿瘤学 | 4435篇 |
出版年
2024年 | 144篇 |
2023年 | 1285篇 |
2022年 | 1106篇 |
2021年 | 2060篇 |
2020年 | 1683篇 |
2019年 | 1728篇 |
2018年 | 2804篇 |
2017年 | 2537篇 |
2016年 | 2752篇 |
2015年 | 3048篇 |
2014年 | 3670篇 |
2013年 | 4440篇 |
2012年 | 4515篇 |
2011年 | 4759篇 |
2010年 | 3111篇 |
2009年 | 3218篇 |
2008年 | 3875篇 |
2007年 | 3681篇 |
2006年 | 3404篇 |
2005年 | 3258篇 |
2004年 | 2781篇 |
2003年 | 2477篇 |
2002年 | 2192篇 |
2001年 | 826篇 |
2000年 | 552篇 |
1999年 | 765篇 |
1998年 | 917篇 |
1997年 | 942篇 |
1996年 | 860篇 |
1995年 | 770篇 |
1994年 | 588篇 |
1993年 | 480篇 |
1992年 | 396篇 |
1991年 | 374篇 |
1990年 | 339篇 |
1989年 | 269篇 |
1988年 | 222篇 |
1987年 | 234篇 |
1986年 | 210篇 |
1985年 | 226篇 |
1984年 | 177篇 |
1983年 | 150篇 |
1982年 | 141篇 |
1981年 | 138篇 |
1980年 | 91篇 |
1979年 | 114篇 |
1978年 | 95篇 |
1977年 | 94篇 |
1976年 | 101篇 |
1972年 | 109篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Raymond J. Chan RN PhD Vivienne E. Milch MBBS MHPol Fiona Crawford-Williams PhD Oluwaseyifunmi Andi Agbejule BRadTherapy Ria Joseph MNutrDiet Jolyn Johal BND Narayanee Dick BSc Matthew P. Wallen PhD Julie Ratcliffe PhD Anupriya Agarwal MBBS Larissa Nekhlyudov MD Matthew Tieu PhD Manaf Al-Momani BPharm Scott Turnbull PhD Rahul Sathiaraj MPH Dorothy Keefe MBBS MD Nicolas H. Hart PhD 《CA: a cancer journal for clinicians》2023,73(6):565-589
Patient navigation is a strategy for overcoming barriers to reduce disparities and to improve access and outcomes. The aim of this umbrella review was to identify, critically appraise, synthesize, and present the best available evidence to inform policy and planning regarding patient navigation across the cancer continuum. Systematic reviews examining navigation in cancer care were identified in the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, Embase, Cumulative Index of Nursing and Allied Health (CINAHL), Epistemonikos, and Prospective Register of Systematic Reviews (PROSPERO) databases and in the gray literature from January 1, 2012, to April 19, 2022. Data were screened, extracted, and appraised independently by two authors. The JBI Critical Appraisal Checklist for Systematic Review and Research Syntheses was used for quality appraisal. Emerging literature up to May 25, 2022, was also explored to capture primary research published beyond the coverage of included systematic reviews. Of the 2062 unique records identified, 61 systematic reviews were included. Fifty-four reviews were quantitative or mixed-methods reviews, reporting on the effectiveness of cancer patient navigation, including 12 reviews reporting costs or cost-effectiveness outcomes. Seven qualitative reviews explored navigation needs, barriers, and experiences. In addition, 53 primary studies published since 2021 were included. Patient navigation is effective in improving participation in cancer screening and reducing the time from screening to diagnosis and from diagnosis to treatment initiation. Emerging evidence suggests that patient navigation improves quality of life and patient satisfaction with care in the survivorship phase and reduces hospital readmission in the active treatment and survivorship care phases. Palliative care data were extremely limited. Economic evaluations from the United States suggest the potential cost-effectiveness of navigation in screening programs. 相似文献
2.
3.
Well‐being,health and fitness of children who use wheelchairs: Feasibility study protocol to develop child‐centred ‘keep‐fit’ exercise interventions
下载免费PDF全文
![点击此处可从《Journal of advanced nursing》网站下载免费的PDF全文](/ch/ext_images/free.gif)
4.
Interprofessional collaboration and communication in nursing homes: a qualitative exploration of problems in medical care for nursing home residents – study protocol
下载免费PDF全文
![点击此处可从《Journal of advanced nursing》网站下载免费的PDF全文](/ch/ext_images/free.gif)
5.
Vincenzo Levi Andrea Franzini Andrea Di Cristofori Giulio Bertani Mauro Pluderi 《The journal of spinal cord medicine》2020,43(5):714-718
Context: Treatment of primary spinal syringomyelia is still controversial. Among others, shunting syrinx fluid to the subarachnoid, peritoneal or pleural space has been utilized with varying success. Shunt obstruction, migration, and infection represent the most common complications of these procedures. Findings: The authors present the case of an 81-year-old woman who developed an unusual neurological deterioration resembling a subacute posttraumatic ascending myelopathy (SPAM) after the insertion of a syringosubarachnoid shunt for the treatment of slow-growing D10 syringomyelia. Conclusion/Clinical Relevance: To date, no cases of SPAM secondary to the insertion of a syringosubarachnoid shunt for the treatment of syringomyelia have been reported. The potential pathogenesis related to this phenomenon is discussed. 相似文献
6.
Quality of life in stroke survivor–caregiver dyads: a new conceptual framework and longitudinal study protocol
下载免费PDF全文
![点击此处可从《Journal of advanced nursing》网站下载免费的PDF全文](/ch/ext_images/free.gif)
7.
Zaida Araujo Sietze Brandes Elena Pinelli María A. Bochichio Andrea Palacios Albina Wide Bruno Rivas-Santiago Juan Carlos Jiménez 《Revista do Instituto de Medicina Tropical de S?o Paulo》2015,57(1):47-55
The present study aimed at measuring seropositivities for infection by
Ascaris suum and Toxocara canis using the
excretory/secretory (E/S) antigens from Ascaris suum (AES) and
Toxocara canis (TES) within an indigenous population. In
addition, quantification of cytokine expressions in peripheral blood cells was
determined. A total of 50 Warao indigenous were included; of which 43 were adults and
seven children. In adults, 44.1% were seropositive for both parasites; whereas
children had only seropositivity to one or the other helminth. For ascariosis, the
percentage of AES seropositivity in adults and children was high; 23.3% and 57.1%,
respectively. While that for toxocariosis, the percentage of TES seropositivity in
adults and children was low; 9.3% and 14.3%, respectively. The percentage of
seronegativity was comparable for AES and TES antigens in adults (27.9%) and children
(28.6%). When positive sera were analyzed by Western blotting technique using AES
antigens; three bands of 97.2, 193.6 and 200.2 kDas were mostly recognized. When the
TES antigens were used, nine major bands were mostly identified; 47.4, 52.2, 84.9,
98.2, 119.1, 131.3, 175.6, 184.4 and 193.6 kDas. Stool examinations showed that
Blastocystis hominis, Hymenolepis nana and
Entamoeba coli were the most commonly observed intestinal
parasites. Quantification of cytokines IFN-γ, IL-2, IL-6, TGF-β, TNF-α, IL-10 and
IL-4 expressions showed that there was only a significant increased expression of
IL-4 in indigenous with TES seropositivity (p < 0.002).
Ascaris and Toxocara seropositivity was
prevalent among Warao indigenous. 相似文献
8.
9.
10.