全文获取类型
收费全文 | 1445篇 |
免费 | 114篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 16篇 |
儿科学 | 71篇 |
妇产科学 | 39篇 |
基础医学 | 187篇 |
口腔科学 | 33篇 |
临床医学 | 88篇 |
内科学 | 344篇 |
皮肤病学 | 37篇 |
神经病学 | 59篇 |
特种医学 | 17篇 |
外科学 | 105篇 |
综合类 | 37篇 |
预防医学 | 214篇 |
眼科学 | 64篇 |
药学 | 141篇 |
中国医学 | 3篇 |
肿瘤学 | 109篇 |
出版年
2023年 | 10篇 |
2022年 | 20篇 |
2021年 | 77篇 |
2020年 | 24篇 |
2019年 | 30篇 |
2018年 | 66篇 |
2017年 | 33篇 |
2016年 | 48篇 |
2015年 | 64篇 |
2014年 | 55篇 |
2013年 | 88篇 |
2012年 | 118篇 |
2011年 | 104篇 |
2010年 | 48篇 |
2009年 | 53篇 |
2008年 | 77篇 |
2007年 | 72篇 |
2006年 | 55篇 |
2005年 | 73篇 |
2004年 | 68篇 |
2003年 | 59篇 |
2002年 | 36篇 |
2001年 | 34篇 |
2000年 | 29篇 |
1999年 | 18篇 |
1998年 | 11篇 |
1997年 | 8篇 |
1996年 | 11篇 |
1995年 | 6篇 |
1994年 | 10篇 |
1993年 | 7篇 |
1992年 | 16篇 |
1991年 | 12篇 |
1990年 | 13篇 |
1989年 | 8篇 |
1988年 | 10篇 |
1987年 | 9篇 |
1986年 | 12篇 |
1985年 | 6篇 |
1984年 | 9篇 |
1983年 | 9篇 |
1982年 | 5篇 |
1981年 | 7篇 |
1980年 | 3篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1973年 | 3篇 |
1971年 | 3篇 |
1970年 | 2篇 |
1968年 | 7篇 |
排序方式: 共有1564条查询结果,搜索用时 15 毫秒
21.
Genome‐wide association study of a nicotine metabolism biomarker in African American smokers: impact of chromosome 19 genetic influences 下载免费PDF全文
Meghan J. Chenoweth Jennifer J. Ware Andy Z. X. Zhu Christopher B. Cole Lisa Sanderson Cox Nikki Nollen Jasjit S. Ahluwalia Neal L. Benowitz Robert A. Schnoll Larry W. Hawk Jr Paul M. Cinciripini Tony P. George Caryn Lerman Joanne Knight Rachel F. Tyndale 《Addiction (Abingdon, England)》2018,113(3):509-523
22.
Amrita Goyal MD Kristin Totoraitis MD Wael Toama MD Fiona He MD Kimberly Bohjanen MD Sarah Williams MD Daniel D. Miller MD 《Journal of cutaneous pathology》2020,47(7):643-648
Mycosis fungoides (MF) is an indolent, uncommon, non-Hodgkin T-cell lymphoma of the skin. It classically presents with patches, plaques, and tumors and may rarely show spread to internal organs or bone marrow. Up to 7.5% of MF patients may be diagnosed with a second malignancy. Intravascular large B-cell lymphoma (IVLBCL) is an exceedingly rare non-Hodgkin B-cell lymphoma characterized by predominant growth of large neoplastic cells in the lumina of blood vessels. This case presents with an unusual confluence of two rare diagnoses, MF and IVLBCL, made more remarkable by the presence of both diagnoses on a single skin biopsy sample. 相似文献
23.
Cancers have long being hallmarked as cells relying heavily on their glycolysis for energy generation in spite of having functional mitochondria. The metabolic status of the cancer cells have been revisited time and again to get better insight into the overall carcinogenesis process which revealed the apparent crosstalks between the cancer cells with the fibroblasts present in the tumour microenvironment. This review focuses on the mechanisms of transformations of normal fibroblasts to cancer-associated fibroblasts (CAF), the participation of the CAF in tumour progression with special interest to the role of CAF cellular glycolysis in the overall tumorigenesis. The fibroblasts, when undergoes the transformation process, distinctly switches to a more glycolytic phenotype in order to provide the metabolic intermediates necessary for carrying out the mitochondrial pathways of ATP generation in cancer cells. This review will also discuss the molecular mechanisms responsible for this metabolic make over promoting glycolysis in CAF cells. A thorough investigation of the pathways and molecules involved will not only help in understanding the process of activation and metabolic reprogramming in CAF cells but also might open up new targets for cancer therapy. 相似文献
24.
25.
BackgroundThere is increasing interest in augmentation of modified Broström repairs for lateral ankle instability with a prosthetic reconstruction using suture tape internal bracing. The aim of this study was to investigate if suture tape augmentation resulted in improved clinical and radiological outcomes compared to a standard modified Broström repair alone.MethodsA systematic review following PRISMA guidelines was undertaken. All clinical studies published in Medline, Embase, Pubmed and the Cochrane Library Database from inception until January 2020 reporting on the use of suture tape augmentation to a modified Broström repair for lateral ankle instability.Results78 studies were identified of which 10 (assessing 333 patients) met the criteria for inclusion. Mean follow up was 24.8 months (range 6–52 months). All studies showed a statistically significant improvement across multiple clinical outcome measures post-surgery in both suture tape augmentation and modified Broström groups, however there were no statistically significant inter-group differences.Pooled results suggested there may be a reduction in recurrence of instability with suture tape augmentation when compared to modified Broström repair alone (p < 0.05). Overall quality of evidence was moderate to poor with limited data to support use of suture tape augmentation.ConclusionClinical and radiographic outcomes using a suture tape internal bracing for lateral ankle instability are excellent, and are equivalent to standard treatment across multiple clinical and radiographic assessment measures. There is minimal evidence to suggest functional outcomes are better, or recurrence rates are lower than modified Broström repair alone.PROSPERO REGISTRYCRD42020169876.Level of evidenceII. 相似文献
26.
27.
Scotland RS Madhani M Chauhan S Moncada S Andresen J Nilsson H Hobbs AJ Ahluwalia A 《Circulation》2005,111(6):796-803
28.
29.
30.
Shira H. Fischer MD PhD Regina A. Shih PhD Tara L. McMullen PhD Maria O. Edelen PhD Sangeeta C. Ahluwalia PhD Emily K. Chen PhD Sarah E. Dalton MA Susan Paddock PhD Anthony Rodriguez PhD Debra Saliba MD MPH AGSF Stella Mandl BSW BSN RN Teresa Mota BSN RN Advisory Group on Medication Reconciliation in PAC 《Journal of the American Geriatrics Society》2022,70(4):1047-1056