全文获取类型
收费全文 | 708437篇 |
免费 | 50249篇 |
国内免费 | 1308篇 |
专业分类
耳鼻咽喉 | 9196篇 |
儿科学 | 23381篇 |
妇产科学 | 17646篇 |
基础医学 | 110866篇 |
口腔科学 | 19977篇 |
临床医学 | 64241篇 |
内科学 | 134964篇 |
皮肤病学 | 16195篇 |
神经病学 | 49772篇 |
特种医学 | 25868篇 |
外国民族医学 | 76篇 |
外科学 | 105354篇 |
综合类 | 14878篇 |
现状与发展 | 2篇 |
一般理论 | 164篇 |
预防医学 | 51663篇 |
眼科学 | 16394篇 |
药学 | 54163篇 |
3篇 | |
中国医学 | 2358篇 |
肿瘤学 | 42833篇 |
出版年
2021年 | 5621篇 |
2018年 | 8015篇 |
2017年 | 6231篇 |
2016年 | 6950篇 |
2015年 | 7720篇 |
2014年 | 10504篇 |
2013年 | 15650篇 |
2012年 | 20834篇 |
2011年 | 21834篇 |
2010年 | 12881篇 |
2009年 | 12085篇 |
2008年 | 20239篇 |
2007年 | 21737篇 |
2006年 | 22109篇 |
2005年 | 20641篇 |
2004年 | 20173篇 |
2003年 | 19121篇 |
2002年 | 18621篇 |
2001年 | 36340篇 |
2000年 | 36909篇 |
1999年 | 30395篇 |
1998年 | 7897篇 |
1997年 | 6675篇 |
1996年 | 6987篇 |
1995年 | 6640篇 |
1994年 | 6106篇 |
1993年 | 5598篇 |
1992年 | 22975篇 |
1991年 | 22934篇 |
1990年 | 22312篇 |
1989年 | 22086篇 |
1988年 | 20043篇 |
1987年 | 19429篇 |
1986年 | 18477篇 |
1985年 | 17310篇 |
1984年 | 12705篇 |
1983年 | 10753篇 |
1982年 | 5937篇 |
1979年 | 11538篇 |
1978年 | 8147篇 |
1977年 | 6843篇 |
1976年 | 6606篇 |
1975年 | 7280篇 |
1974年 | 8503篇 |
1973年 | 8149篇 |
1972年 | 7673篇 |
1971年 | 7137篇 |
1970年 | 6883篇 |
1969年 | 6309篇 |
1968年 | 5784篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
M. Larsabal S. Ly E. Sbidian M. Moyal-Barracco J.-N. Dauendorffer N. Dupin M.A. Richard O. Chosidow M. Beylot-Barry 《The British journal of dermatology》2019,180(3):647-656
Psoriasis is a common chronic inflammatory skin disease, affecting about 3% of the general population and approximately 2.5 million people in France, where this study took place. The genital area may be affected, however prevalence is poorly understood, meaning we do not know exactly how commonly this occurs. While it affects quality of life, genital psoriasis is under-recognized, probably due to the reluctance of patients to discuss genital involvement and sexual quality of life. The aims of this study, called the GENIPSO study, were to determine the prevalence of genital psoriasis, its clinical characteristics (its symptoms), whether it is associated with a particular type of psoriasis, and its impact on quality of life. The study included 776 adults seeing their doctor for psoriasis between November 2016 and March 2017. Among them, 336 (43.2%) had genital psoriasis. All these patients were aware that they had psoriasis on their genitals (genital lesions) but only 135 (40%) had already had a genital medical examination. Genital lesions were associated with (linked to) male gender, more severe psoriasis, first developing psoriasis when aged over 20 years, psoriasis of the skin folds, psoriasis on the scalp, nail and external auditory (ear) canal, but they were not associated with obesity or psoriatic arthritis. Itching was the main symptom. Genital psoriasis was associated with reduced quality of life and sexual health. The study found that genital psoriasis has a high prevalence in patients seeing their doctors about their psoriasis generally, it affects quality of life and should be better taken into account by dermatologists for the best possible care for patients. 相似文献
112.
113.
Éktova L. V. Goryunova O. V. Eremina V. A. Tikhonova N. I. Medvedeva L. A. 《Pharmaceutical Chemistry Journal》2019,53(7):604-609
Pharmaceutical Chemistry Journal - Use of formylindolylacetic acid as a reagent at the stage of preparing the glycosides of bis(indolyl)furan-2,5-diones and dioxane as solvent increased yields from... 相似文献
114.
115.
116.
117.
118.
119.
Cécile Vicier Lillian Werner Jonathan Chipman Lauren C. Harshman Dattatraya H. Patil Raina N. Fichorova Jennifer R. Rider Martin G. Sanda Lorelei A. Mucci Christopher J. Sweeney 《Clinical genitourinary cancer》2019,17(1):32-37
Background
Inflammation and infections have been associated with prostate cancer progression. We assessed whether elevated serum cytokines or T. vaginalis seropositivity at the time of diagnosis was associated with higher grade or lethal prostate cancer.Patients and Methods
Men with localized or metastatic prostate cancer were included in this study. Cytokine serum levels including interleukin (IL)-1α, IL-1β, IL-2, IL-6, IL-8, monocyte chemotactic protein 1 (CCL-2), tumor necrosis factor α, and growth-regulated oncogene α (CXCL-1) using a multiplex enzyme-linked immunosorbent assay and T. vaginalis serology were measured in blood samples at diagnosis.Results
A total of 324 patients were identified at time of localized disease and 118 at time of metastatic disease. Of the 189 patients with localized disease and clinical follow-up data (median, 73 months), 28 developed lethal disease. There was no association between circulating cytokine levels above median concentrations nor T. vaginalis seropositivity and risk of intermediate- to high-risk or lethal prostate cancer.Conclusion
Higher levels of serum cytokine levels and T. vaginalis seropositivity at diagnosis are not associated with high-grade or lethal prostate cancer and do not aid risk stratification of localized prostate cancer. 相似文献120.