全文获取类型
收费全文 | 20261篇 |
免费 | 1213篇 |
国内免费 | 204篇 |
专业分类
耳鼻咽喉 | 165篇 |
儿科学 | 334篇 |
妇产科学 | 330篇 |
基础医学 | 2880篇 |
口腔科学 | 672篇 |
临床医学 | 1855篇 |
内科学 | 5324篇 |
皮肤病学 | 231篇 |
神经病学 | 2075篇 |
特种医学 | 705篇 |
外科学 | 2982篇 |
综合类 | 63篇 |
一般理论 | 3篇 |
预防医学 | 1008篇 |
眼科学 | 257篇 |
药学 | 1603篇 |
中国医学 | 68篇 |
肿瘤学 | 1123篇 |
出版年
2023年 | 131篇 |
2022年 | 337篇 |
2021年 | 573篇 |
2020年 | 400篇 |
2019年 | 507篇 |
2018年 | 625篇 |
2017年 | 456篇 |
2016年 | 520篇 |
2015年 | 596篇 |
2014年 | 791篇 |
2013年 | 965篇 |
2012年 | 1536篇 |
2011年 | 1580篇 |
2010年 | 873篇 |
2009年 | 784篇 |
2008年 | 1227篇 |
2007年 | 1324篇 |
2006年 | 1147篇 |
2005年 | 1215篇 |
2004年 | 1112篇 |
2003年 | 988篇 |
2002年 | 949篇 |
2001年 | 224篇 |
2000年 | 223篇 |
1999年 | 229篇 |
1998年 | 223篇 |
1997年 | 154篇 |
1996年 | 113篇 |
1995年 | 115篇 |
1994年 | 107篇 |
1993年 | 100篇 |
1992年 | 144篇 |
1991年 | 97篇 |
1990年 | 88篇 |
1989年 | 66篇 |
1988年 | 69篇 |
1987年 | 62篇 |
1986年 | 66篇 |
1985年 | 54篇 |
1984年 | 53篇 |
1983年 | 40篇 |
1982年 | 37篇 |
1981年 | 35篇 |
1980年 | 34篇 |
1978年 | 21篇 |
1973年 | 24篇 |
1970年 | 24篇 |
1935年 | 21篇 |
1925年 | 23篇 |
1922年 | 22篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
de Oliveira Adilson J M Solla Davi J. F. de Oliveira Klever F. Amaral Bruno S. Andrade Almir F. Kolias Angelos G. Paiva Wellingson S. 《Neurological sciences》2022,43(1):427-434
Neurological Sciences - Chronic subdural haematoma (CSDH) is one of the most common neurosurgical pathologies. The recurrence of chronic subdural haematomas is an important concern, considering... 相似文献
13.
Objective
To explore from a gender perspective the association with subjective health of the interaction between education and household arrangements within the framework of social determinants of health placed at the micro and mezzo levels.Methods
The data comes from the Spanish sample of the European Union Statistics on Income and Living Conditions for 2014. Independent logistic regression models for men and women were run to analyze the association with subjective health of the interaction between education and household arrangements. An additive model was run to assess possible advantages over the interaction approach.Results
The interaction models show a lower or even no significant effect on health of household arrangements usually negatively associated with health among individuals with high education, displaying specific patterns according to sex.Conclusions
Health profiles of women and men are more precisely drawn if both social determinants of health are combined. Among the women, the important role was confirmed of both social determinants of health in understanding their health inequalities. Among the men, mainly those with low educational achievement, the interaction revealed that the household was a more meaningful social determinant of health. This could enable the definition of more efficient public policies to reduce health and gender inequalities. 相似文献14.
Renaud Snanoudj Nassim Kamar Elisabeth Cassuto Sophie Caillard Marie Metzger Pierre Merville Antoine Thierry Isabelle Jollet Philippe Grimbert Dany Anglicheau Marc Hazzan Gabriel Choukroun Bruno Hurault De Ligny Bénedicte Janbon Vincent Vuiblet Anne Devys Yann Le Meur Michel Delahousse Jean-Luc Taupin 《Kidney international》2019,95(6):1471-1485
15.
Chiara Tanzi Gaia Fallani Francesco Magnani Giovanni Marozza Silvia Pizzarotti Bruno Zoppi Davide Lazzeroni Lorenzo Brambilla Paolo Coruzzi Luca Moderato 《La Medicina del lavoro》2020,111(2):107
Background:Cardiovascular diseases (CVD), particularly the ischemic heart disease, are a growing public health issue. In addition, the return to work after an acute cardiovascular attack represents a complex challenge.Objectives:To evaluate utility and safety of cardiopulmonary exercise testing (CPET), particularly performed “on site”, to promote a return to work in line with the residual working capacity.Methods:Fifty-nine workers affected by a major cardiovascular event, aged 18-63 years, have been enrolled between 2015 and 2018. All the patients underwent a CPET in outpatient clinic. Eleven workers also underwent the “on site” CPET, recorded during their working activities.Results:Outpatient clinic CPET outcomes (i.e. normal, mild impairment or moderate/severe impairment of cardiopulmonary function) were associated with the subjective perception of workers’ health status after returning to work. The “on site” CPET was found to be safe and reliable to promote a personalized return to work of patients. In 7 out of 11 patients, the values of O2 consumption (VO2) during the working activity were higher than 40% of VO2 max as obtained from laboratory CPET.Conclusions:This study provides evidence for safety and usefulness of “on site” CPET for a personalized statement of fitness for work. This may facilitate the job retention of patients characterized by a high risk of unnecessary job loss. The use of CPET represents a first step of energy expenditure evaluation associated with specific working tasks.Key words: Acute coronary syndrome, cardiopulmonary exercise testing, return to work 相似文献
16.
17.
Gazzaruso C. Bruno R. Pujia A. 《世界核心医学期刊文摘》2006,2(8):54-54
背景:针对糖尿病患者Lp(a)水平和冠状动脉疾病(CAD)严重程度之间关系的研究较少并且结论有争议。另外,目前尚无关于apo(a)多态性与上述疾病关系的研究。本研究旨在探讨大样本2型糖尿病患者中冠状动脉粥样硬化的程度与Lp(a)水平及apo(a)多态性的相关性。方法:连续选取227例2型糖 相似文献
18.
David M Dohan Joseph Choukroun Antoine Diss Steve L Dohan Anthony J J Dohan Jaafar Mouhyi Bruno Gogly 《Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics》2006,101(3):e37-e44
Platelet-rich fibrin (PRF) belongs to a new generation of platelet concentrates geared to simplified preparation without biochemical blood handling. In this initial article, we describe the conceptual and technical evolution from fibrin glues to platelet concentrates. This retrospective analysis is necessary for the understanding of fibrin technologies and the evaluation of the biochemical properties of 3 generations of surgical additives, respectively fibrin adhesives, concentrated platelet-rich plasma (cPRP) and PRF. Indeed, the 3-dimensional fibrin architecture is deeply dependent on artificial clinical polymerization processes, such as massive bovine thrombin addition. Currently, the slow polymerization during PRF preparation seems to generate a fibrin network very similar to the natural one. Such a network leads to a more efficient cell migration and proliferation and thus cicatrization. 相似文献
19.
Bruno Ferrari Antonio Pezzuto Lorenzo Barusi Francesco Coppola 《Gynecological endocrinology》2006,22(6):289-296
The aim of the present study was to investigate the effect of gonadotropin-releasing hormone (GnRH) antagonists (GnRH-ant) on follicular fluid (FF) insulin-like growth factor-I (IGF-I) and FF vascular endothelial growth factor (VEGF) levels. Sixty women undergoing assisted reproduction were randomized and assigned to two different GnRH analog regimens: GnRH agonist (GnRH-a) and GnRH-ant. FF VEGF and FF IGF-I concentrations were significantly increased in the patients treated with GnRH-ant (p < 0.001). In the same patients we observed a statistically significant reduction in serum luteinizing hormone (LH) and estradiol (E2) levels (p < 0.001 and p < 0.05, respectively), FF E2 and FF androstenedione levels (p < 0.05 and p < 0.001, respectively), as well as a reduction in the number of pregnancies although this was not statistically significant. In the GnRH-ant group, FF VEGF levels were positively correlated with FF IGF-I levels, and both were negatively correlated with serum LH levels. The increase in FF IGF-I and FF VEGF levels in women treated with GnRH-ant could be explained by a deleterious follicular environment in response to profound suppression of LH and E2 levels. 相似文献
20.