全文获取类型
收费全文 | 19704篇 |
免费 | 5008篇 |
国内免费 | 67篇 |
专业分类
耳鼻咽喉 | 82篇 |
儿科学 | 436篇 |
妇产科学 | 1634篇 |
基础医学 | 292篇 |
口腔科学 | 194篇 |
临床医学 | 15334篇 |
内科学 | 2217篇 |
皮肤病学 | 64篇 |
神经病学 | 711篇 |
特种医学 | 191篇 |
外科学 | 1035篇 |
综合类 | 39篇 |
预防医学 | 1758篇 |
眼科学 | 65篇 |
药学 | 93篇 |
中国医学 | 2篇 |
肿瘤学 | 632篇 |
出版年
2023年 | 772篇 |
2022年 | 87篇 |
2021年 | 243篇 |
2020年 | 626篇 |
2019年 | 213篇 |
2018年 | 1085篇 |
2017年 | 1347篇 |
2016年 | 1427篇 |
2015年 | 1501篇 |
2014年 | 1535篇 |
2013年 | 1793篇 |
2012年 | 485篇 |
2011年 | 748篇 |
2010年 | 1078篇 |
2009年 | 1375篇 |
2008年 | 702篇 |
2007年 | 608篇 |
2006年 | 604篇 |
2005年 | 509篇 |
2004年 | 475篇 |
2003年 | 405篇 |
2002年 | 348篇 |
2001年 | 477篇 |
2000年 | 287篇 |
1999年 | 433篇 |
1998年 | 585篇 |
1997年 | 690篇 |
1996年 | 639篇 |
1995年 | 567篇 |
1994年 | 417篇 |
1993年 | 334篇 |
1992年 | 253篇 |
1991年 | 239篇 |
1990年 | 239篇 |
1989年 | 181篇 |
1988年 | 137篇 |
1987年 | 131篇 |
1986年 | 122篇 |
1985年 | 143篇 |
1984年 | 103篇 |
1983年 | 99篇 |
1982年 | 81篇 |
1981年 | 89篇 |
1980年 | 54篇 |
1979年 | 77篇 |
1978年 | 58篇 |
1977年 | 66篇 |
1976年 | 69篇 |
1975年 | 38篇 |
1972年 | 81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.
4.
Anna Ugalde BA PhD Victoria White BA MA PhD Nicole M. Rankin BA MSc PhD Christine Paul BA PhD Catherine Segan BA PhD Sanchia Aranda RN BAppSci MN PhD Anna Wong Shee BSc BAppSc PhD Alison M. Hutchinson RN BApp Sci MBioth PhD Patricia M. Livingston BA PhD 《CA: a cancer journal for clinicians》2022,72(3):266-286
Smoking cessation reduces the risk of death, improves recovery, and reduces the risk of hospital readmission. Evidence and policy support hospital admission as an ideal time to deliver smoking-cessation interventions. However, this is not well implemented in practice. In this systematic review, the authors summarize the literature on smoking-cessation implementation strategies and evaluate their success to guide the implementation of best-practice smoking interventions into hospital settings. The CINAHL Complete, Embase, MEDLINE Complete, and PsycInfo databases were searched using terms associated with the following topics: smoking cessation, hospitals, and implementation. In total, 14,287 original records were identified and screened, resulting in 63 eligible articles from 56 studies. Data were extracted on the study characteristics, implementation strategies, and implementation outcomes. Implementation outcomes were guided by Proctor and colleagues' framework and included acceptability, adoption, appropriateness, cost, feasibility, fidelity, penetration, and sustainability. The findings demonstrate that studies predominantly focused on the training of staff to achieve implementation. Brief implementation approaches using a small number of implementation strategies were less successful and poorly sustained compared with well resourced and multicomponent approaches. Although brief implementation approaches may be viewed as advantageous because they are less resource-intensive, their capacity to change practice in a sustained way lacks evidence. Attempts to change clinician behavior or introduce new models of care are challenging in a short time frame, and implementation efforts should be designed for long-term success. There is a need to embrace strategic, well planned implementation approaches to embed smoking-cessation interventions into hospitals and to reap and sustain the benefits for people who smoke. 相似文献
5.
6.
7.
Diane Berish PhD Erica Husser PhD Jenny Knecht-Fredo MSN CRNP Jacqueline Sabol MEd George Garrow MD Judith Hupcey EdD CRNP FAAN Donna Fick RN GCNS-BC PhD FGSA FAAN 《Health services research》2023,58(Z1):78-88
Objective
To collaboratively implement the age-friendly health systems framework, known as the 4Ms: What Matters, Medication, Mentation, and Mobility, at The Primary Health Network (PHN), a federally qualified health center.Data Sources
Data were collected from PHN electronic medical records (EMRs) for individuals over age 65 from December 30, 2019 to December 24, 2021 and from Project ECHO© attendance and evaluation surveys.Study Design
The telementoring educational program, Project ECHO©, was used to engage PHN health care professionals working in rural areas of Pennsylvania to incorporate the 4Ms into their practice starting with the annual wellness visit (AWV). Project ECHO© was launched at three primary care sites. After 18 months, it was then disseminated to an additional 18 sites creating pilot and comparison groups. Outcomes included codesigned patient process metrics using EMR data and project ECHO© participant data.Data Collection Methods
EMR data were generated by system reports created by PHN's quality assurance program manager. Project ECHO© data were collected and managed using REDCap electronic data capture tools. Outcomes were aggregated, analyzed for trends over time, and compared between groups.Principal Findings
All nine process outcomes increased from baseline to follow-up at the three initial sites, ranging from 4% to 43% g. At year two, the three initial sites had higher rates on AWVs (pilot 24%, comparison 12%; p < 0.0001), Advance Care Planning (New on file, pilot 8%, comparison 2%; Discussed with patient, pilot 18%, comparison 13%; Patient declined, pilot 0%, comparison 0%; p = 0.0001), Dementia Screening (pilot 24%, comparison 12%; p < 0.0001), Fall Risk Management (pilot 43%, comparison 10%; p < 0.0001), and Mobility Goal (pilot 19%, comparison 9%; p < 0.0001); and lower rates on High-Risk Medication Elimination (pilot 54%, comparison, 63%, p < 0.02).Conclusions
Access to high-quality geriatric care for rural older adults can be improved by increasing health care professionals' knowledge of the 4Ms, beginning with its incorporation into the AWV. 相似文献8.
Sabrina Paganoni MD PhD Mohamad J. Alshikho MD Sarah Luppino RN James Chan MA Lindsay Pothier BA David Schoenfeld PhD Patricia L. Andres DPT Suma Babu MD Nicole R. Zürcher PhD Marco L. Loggia PhD Robert L. Barry PhD Silvia Luotti MS Giovanni Nardo PhD Maria Chiara Trolese MS Serena Pantalone MS Caterina Bendotti PhD Valentina Bonetto PhD Fabiola De Marchi MD Bruce Rosen MD PhD Jacob Hooker PhD Merit Cudkowicz MD Nazem Atassi MD 《Muscle & nerve》2019,59(3):303-308
Introduction: RNS60 is a novel immune-modulatory agent that has shown neuroprotective effects in amytrophic lateral sclerosis (ALS) preclinical models. RNS60 is administered by weekly intravenous infusion and daily nebulization. The objective of this pilot open-label trial was to test the feasibility, safety, and tolerability of long-term RNS60 administration in ALS patients. Methods: The planned treatment duration was 23 weeks and the primary outcomes were safety and tolerability. Secondary outcomes included PBR28 positron emission tomography (PET) imaging and plasma biomarkers of inflammation. Results: Sixteen participants with ALS received RNS60 and 13 (81%) completed 23 weeks of RNS60 treatment. There were no serious adverse events and no participants withdrew from the trial due to drug-related adverse events. There were no significant changes in the biomarkers. Discussion: Long-term RNS60 administration was safe and well-tolerated. A large, multicenter, phase II trial of RNS60 is currently enrolling participants to test the effects of RNS60 on ALS biomarkers and disease progression. Muscle Nerve 59 :303–308, 2019 相似文献
9.
10.