全文获取类型
收费全文 | 9331篇 |
免费 | 485篇 |
国内免费 | 85篇 |
专业分类
耳鼻咽喉 | 68篇 |
儿科学 | 223篇 |
妇产科学 | 303篇 |
基础医学 | 966篇 |
口腔科学 | 183篇 |
临床医学 | 814篇 |
内科学 | 2552篇 |
皮肤病学 | 67篇 |
神经病学 | 961篇 |
特种医学 | 455篇 |
外科学 | 1349篇 |
综合类 | 22篇 |
一般理论 | 3篇 |
预防医学 | 378篇 |
眼科学 | 134篇 |
药学 | 583篇 |
中国医学 | 19篇 |
肿瘤学 | 821篇 |
出版年
2023年 | 49篇 |
2022年 | 133篇 |
2021年 | 279篇 |
2020年 | 148篇 |
2019年 | 245篇 |
2018年 | 316篇 |
2017年 | 230篇 |
2016年 | 248篇 |
2015年 | 284篇 |
2014年 | 381篇 |
2013年 | 477篇 |
2012年 | 741篇 |
2011年 | 716篇 |
2010年 | 378篇 |
2009年 | 398篇 |
2008年 | 578篇 |
2007年 | 560篇 |
2006年 | 566篇 |
2005年 | 574篇 |
2004年 | 509篇 |
2003年 | 488篇 |
2002年 | 437篇 |
2001年 | 96篇 |
2000年 | 80篇 |
1999年 | 93篇 |
1998年 | 87篇 |
1997年 | 87篇 |
1996年 | 71篇 |
1995年 | 56篇 |
1994年 | 52篇 |
1993年 | 33篇 |
1992年 | 57篇 |
1991年 | 40篇 |
1990年 | 40篇 |
1989年 | 21篇 |
1988年 | 39篇 |
1987年 | 28篇 |
1986年 | 34篇 |
1985年 | 33篇 |
1984年 | 22篇 |
1983年 | 24篇 |
1982年 | 26篇 |
1981年 | 23篇 |
1980年 | 18篇 |
1979年 | 9篇 |
1978年 | 12篇 |
1977年 | 10篇 |
1974年 | 8篇 |
1972年 | 13篇 |
1968年 | 7篇 |
排序方式: 共有9901条查询结果,搜索用时 734 毫秒
1.
Quality of life in stroke survivor–caregiver dyads: a new conceptual framework and longitudinal study protocol 下载免费PDF全文
2.
Angela Mauro Salvatore Mauro Roberto Rega Luigi Martemucci Rita Sottile 《Pediatric dermatology》2019,36(1):e34-e36
Henoch‐Schonlein purpura (HSP) is the most common systemic vasculitis in childhood. There is no consensus about the management for isolated cutaneous manifestations in HSP. We describe a case of HSP presenting with severe skin lesions that did not respond to standard therapy with corticosteroids. The 11‐year‐old child was treated with intravenous immunoglobulins, which induced rapid and persistent resolution of symptomatology. 相似文献
3.
4.
Salvatore Greco Beatrice Bonsi Nicol Fabbri 《World Journal of Experimental Medicine》2022,12(5):104-107
Even if the relationships between nutrition and inflammatory bowel disease (IBD) remain underexplored, the current literature is providing, day by day, much more evidence on the effects of various diets in both prevention and treatment of such illnesses. Wrong dietary habits, together with other environmental factors such as pollution, breastfeeding, smoke, and/or antibiotics, are among the theoretical pathogenetic causes of IBD, whose multifactorial aetiology has been already confirmed. While some of these risk factors are potentially reversible, some others cannot be avoided, and efficient treatments become necessary to prevent IBD spread or recurrence. Furthermore, the drugs currently available for treatment of such disease provide low-to-no effect against the symptoms, making the illnesses still strongly disabling. Whether nutrition and specific diets will prove to effectively interrupt the course of IBD has still to be clarified and, in this sense, further research concerning the applications of such dietary interventions is still needed. 相似文献
5.
Maria Russo Claudio Lucifora Francesco Pucciarelli Bruno Piccoli 《La Medicina del lavoro》2019,110(2):115
Background:Workplace hazards are a significant source of health impairment for workers and of financial losses for firms. EU directives on workers’ health and safety standards significantly contributed to reduce reported occupational injuries, yet the incidence and prevalence of work-related mental illness is still very high.Objectives:We investigated the association between work-related hazards and individuals’ perceived mental health. We reviewed the existing evidence on the channels through which task-related factors, adverse agents and psychosocial factors are expected to affect workers’ health, with specific regard to mental health.Methods:We used data from the fifth wave of the European Working Conditions Survey, covering over 40,000 face-to-face interviews with workers in 34 countries, which includes information on socio-demographic characteristics, firms and jobs attributes, employment status, as well as working conditions and health status. We carried out an empirical analysis with multivariate regression models in order to estimate the relationship between workers’ mental health problems and workplace risk factors.Results:21,020 interviews were used in the multivariate analysis. We found strong correlations between hazards and various indicators of mental health. Among hazardous agents, low temperatures (β=0.0287) and contact with infectious materials (β=0.0394) were positively associated with mental health outcomes. Among task/sequence-related factors, tiring or painful positions (β=0.0713), repetitive hand/arm movements (β=0.0255), working with VDUs (β=0.0301), repetitive tasks <10 min (β=0.0859) and working in evenings (β=0.00754) were positively associated with mental health. Various psychosocial risk factors related to both the content of the job (for example, frequent disruptive interruptions: β=0.219, working in free time: β=0.0759, poor work-life balance: β=0.228) as well as the job context (for example, bad employment prospects: β=0.177, low decisional autonomy: β=0.245, bad social relations: β=0.186, workplace violence: β=0.411) were positively associated with mental health. The main results of the decomposition show that an important contribution to workers’ overall mental distress at work is associated with psychosocial risk factors (up to 60% for depression/anxiety symptoms and sleep disorders), while the contribution of somatic factors is on average lower (up to 20% for overall fatigue).Conclusions:We argue that action is needed to improve workers’ mental well-being, and reduce the economic costs for both the national health system and employers. Regulations and traditional economic measures are unlikely to prove successful in providing adequate standards of primary and secondary preventive measures in the work place without an appropriate and reliable Risk Assessment Procedure.Key words: Work hazards, risk assessment, job content, mental health 相似文献
6.
7.
8.
Paolo Mazzone Fabrizio Stocchi Salvatore Galati Angelo Insola Maria Grazia Altibrandi Nicola Modugno Domenicantonio Tropepi Livia Brusa Alessandro Stefani 《Neuromodulation》2006,9(3):221-228
Objectives. Traditional deep brain stimulation (DBS) at the subthalamic nucleus (STN) has proved to be efficacious on core Parkinsonian symptoms. However, very disabling l ‐dopa–induced abnormal involuntary movements (AIMs) and axial signs are slightly affected, suggesting that we target less conventional targets. Our candidates for DBS were the globus pallidus internus (GPi) plus the intralaminar thalamic complex (Pf or CM), given its extensive functional links with basal ganglia nuclei. Materials and Methods. The routine utilization of our innovative stereotactic apparatus allows us to implant, at the same time, both the CM‐Pf complex together with the GPi in six Parkinson disease patients. Both intraoperative and postoperative neurophysiologic assessments helped us recognize functional subregions while optimizing implantation of electrodes. Unified Parkinson disease rating scale (UPDRS) motor scores, AIMs, and freezing were carefully blindly evaluated for each condition. Results. A significant amelioration of UPDRS scores was achieved by simultaneous activation of both targets. CM‐Pf activation was only slightly effective in reducing rigidity and akinesia, but more efficacious on freezing. Not surprisingly, AIMs were peculiarly decreased by the activation of the permanent electro‐catheter in the posteroventral GPi. Conclusions. These findings confirm that, in selected patients, it is conceivable to target structures other than the conventional STN in order to maximize clinical benefit. 相似文献
9.
Federigo Sicuteri Maria Nicolodi Bruno Marcello Fusco Salvatore Orlando 《Headache》1991,31(9):577-581
Following tooth pulp extirpation, some subjects suffer from persistent pain which affects edentate sites in absence of any local pathology. As regards this peculiar pain, called phantom tooth pain (PTP), what is puzzling is the fact there is a low prevalence of PTP in a very large population showing identical conditions of tooth pulp extirpation. The present investigation indicates that PTP mainly affects migraine (M) and cluster headache (CH) sufferers, whereas it does not affect subjects who have a negative personal and family history for idiopathic headache (IH). These results circumscribe the presence of PTP to a specific section of the population. The present results, besides indicating that PTP may be the result of a peculiar neuronal predisposition relating to IH pathogenesis, suggests some practical therapeutic hints. In fact, successful anti- M and anti-CH prophylactic treatment greatly improve PTP syndrome. 相似文献
10.