全文获取类型
收费全文 | 11204篇 |
免费 | 2751篇 |
国内免费 | 63篇 |
专业分类
耳鼻咽喉 | 282篇 |
儿科学 | 345篇 |
妇产科学 | 317篇 |
基础医学 | 642篇 |
口腔科学 | 498篇 |
临床医学 | 1330篇 |
内科学 | 3211篇 |
皮肤病学 | 501篇 |
神经病学 | 978篇 |
特种医学 | 263篇 |
外科学 | 2844篇 |
综合类 | 17篇 |
一般理论 | 1篇 |
预防医学 | 985篇 |
眼科学 | 704篇 |
药学 | 297篇 |
中国医学 | 11篇 |
肿瘤学 | 792篇 |
出版年
2024年 | 7篇 |
2023年 | 722篇 |
2022年 | 123篇 |
2021年 | 432篇 |
2020年 | 479篇 |
2019年 | 277篇 |
2018年 | 821篇 |
2017年 | 846篇 |
2016年 | 758篇 |
2015年 | 725篇 |
2014年 | 1008篇 |
2013年 | 952篇 |
2012年 | 776篇 |
2011年 | 741篇 |
2010年 | 701篇 |
2009年 | 820篇 |
2008年 | 584篇 |
2007年 | 486篇 |
2006年 | 490篇 |
2005年 | 369篇 |
2004年 | 314篇 |
2003年 | 270篇 |
2002年 | 250篇 |
2001年 | 120篇 |
2000年 | 67篇 |
1999年 | 87篇 |
1998年 | 100篇 |
1997年 | 105篇 |
1996年 | 67篇 |
1995年 | 76篇 |
1994年 | 57篇 |
1993年 | 42篇 |
1992年 | 45篇 |
1991年 | 41篇 |
1990年 | 25篇 |
1989年 | 32篇 |
1988年 | 24篇 |
1987年 | 20篇 |
1986年 | 10篇 |
1985年 | 8篇 |
1984年 | 10篇 |
1983年 | 11篇 |
1982年 | 22篇 |
1981年 | 17篇 |
1980年 | 12篇 |
1978年 | 6篇 |
1977年 | 11篇 |
1976年 | 6篇 |
1975年 | 6篇 |
1962年 | 5篇 |
排序方式: 共有10000条查询结果,搜索用时 31 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.
Silvia Ceccanti Francesco Cozzi Alice Cervellone Augusto Zani Denis A. Cozzi 《Journal of pediatric surgery》2019,54(2):326-330
Aim
We sought to assess the magnitude of functional decline and the natural history of the operated kidney residual function after zero-ischemia nephron-sparing surgery (Z-NSS) in children with unilateral renal tumor (URT).Patients and methods
50 children were treated for URT at our surgical unit between 1992 and 2016. Of these 12 who underwent Z-NSS were available for the current analysis. Operated kidney function was assessed by 99mTc-dimercapto-succinic acid (DMSA) renal scintigraphy. Operated kidney volume was assessed by renal ultrasonography.Results
A positive correlation between split renal function and split renal volume was found (P?=?0.001). The subset of patients with ≥ 40% preservation of operated kidney function/volume (OKF/V) had no-time dependent changes during adolescence. The subset of patients with < 40% OKF/V preservation had a catch-up growth that after puberty reached values not much different from those with ≥ 40% OKF/V preservation. At 5?years of follow-up, 3 of 5 patients with baseline dysfunction (eGFR between 40.8 and 89.4?ml/min/1.73?m2) presented with a global renal function within normal range. After puberty, all patients presented with global renal function within normal values (eGFR between 95 and 151?ml/min/1.73 m2).Conclusions
In children with URT who underwent Z-NSS, the pattern of OKF/V recovery suggests that compensatory catch-up growth capacity during childhood minimizes OKF/V decline more than Z-NSS.Level of evidence
Level I prognosis study — prospective cohort study with > 80% follow-up and all patients enrolled at same time point in disease. 相似文献4.
5.
Yue Yu MBBS MRCS Rehena Sultana MSc Mahalakshmi S. Rangabashyam MBBS MRCSEd DipNB Niraj Mohan MBBS Jacqueline S. G. Hwang MBBS FRCPA FAMS Yoke-Lim Soong MBBS FRCR FFRRCSI Ngian-Chye Tan MBBS MMed FRCSEd FAMS Gopalakrishna N. Iyer MBBS PhD FRCSEd FAMS Hiang-Khoon Tan MBBS FRCSEd FAMS PhD 《The Laryngoscope》2020,130(8):1947-1953
6.
7.
8.
Raffit Hassan MD Christine Alewine MD PhD Idrees Mian MD Anna Spreafico MD PhD Lillian L. Siu MD FRCPC Carlos Gomez-Roca MD Jean-Pierre Delord MD PhD Antoine Italiano MD PhD Ulrik Lassen MD PhD Jean-Charles Soria MD PhD Rastilav Bahleda MD Anish Thomas MBBS MD Seth M. Steinberg PhD Cody J. Peer PhD William D. Figg PharmD Gerhard Niederfellner PhD Valérie Méresse Naegelen MD Ira Pastan PhD 《Cancer》2020,126(22):4936-4947
9.
Katrina Hueniken MPH Catriona M. Douglas BSc MBChB MD Ashok R. Jethwa MD Maryam Mirshams MSc Lawson Eng MD Andrew Hope MD Douglas B. Chepeha MD David P. Goldstein MD MSc Jolie Ringash MD MSc Aaron Hansen BSc MBBS Rosemary Martino PhD Madeline Li MD PhD Geoffrey Liu MD Wei Xu MD John R. de Almeida MD MSc 《Cancer》2020,126(17):4042-4050
10.
Darren R. Feldman MD Yasser Ged MBBS Chung-Han Lee PhD Andrea Knezevic MS Ana M. Molina MD Ying-Bei Chen PhD Joshua Chaim DO Devyn T. Coskey MS Samuel Murray MS Satish K. Tickoo MD Victor E. Reuter MD Sujata Patil PhD Han Xiao MD Jahan Aghalar MD Arlyn J. Apollo MD Maria I. Carlo MD Robert J. Motzer MD Martin H. Voss MD 《Cancer》2020,126(24):5247-5255