全文获取类型
收费全文 | 4249篇 |
免费 | 358篇 |
国内免费 | 14篇 |
专业分类
耳鼻咽喉 | 45篇 |
儿科学 | 172篇 |
妇产科学 | 85篇 |
基础医学 | 717篇 |
口腔科学 | 94篇 |
临床医学 | 389篇 |
内科学 | 902篇 |
皮肤病学 | 66篇 |
神经病学 | 460篇 |
特种医学 | 102篇 |
外科学 | 382篇 |
综合类 | 12篇 |
一般理论 | 1篇 |
预防医学 | 475篇 |
眼科学 | 95篇 |
药学 | 301篇 |
中国医学 | 5篇 |
肿瘤学 | 318篇 |
出版年
2023年 | 48篇 |
2022年 | 55篇 |
2021年 | 119篇 |
2020年 | 97篇 |
2019年 | 122篇 |
2018年 | 129篇 |
2017年 | 123篇 |
2016年 | 120篇 |
2015年 | 137篇 |
2014年 | 143篇 |
2013年 | 198篇 |
2012年 | 363篇 |
2011年 | 370篇 |
2010年 | 192篇 |
2009年 | 167篇 |
2008年 | 262篇 |
2007年 | 307篇 |
2006年 | 233篇 |
2005年 | 254篇 |
2004年 | 273篇 |
2003年 | 226篇 |
2002年 | 220篇 |
2001年 | 30篇 |
2000年 | 26篇 |
1999年 | 31篇 |
1998年 | 32篇 |
1997年 | 27篇 |
1996年 | 26篇 |
1995年 | 20篇 |
1994年 | 22篇 |
1993年 | 18篇 |
1992年 | 24篇 |
1991年 | 26篇 |
1990年 | 15篇 |
1989年 | 14篇 |
1988年 | 14篇 |
1987年 | 12篇 |
1986年 | 8篇 |
1985年 | 8篇 |
1984年 | 8篇 |
1983年 | 6篇 |
1982年 | 8篇 |
1980年 | 5篇 |
1975年 | 5篇 |
1973年 | 5篇 |
1969年 | 6篇 |
1968年 | 12篇 |
1967年 | 6篇 |
1966年 | 6篇 |
1965年 | 8篇 |
排序方式: 共有4621条查询结果,搜索用时 15 毫秒
61.
Aila Pikkarainen Katja Vähäsantanen Susanna Paloniemi Anneli Eteläpelto 《Scandinavian journal of occupational therapy》2015,22(6):424-434
Aims: This study investigates gerontological rehabilitation sessions of Finnish rehabilitees in the framework of life-course agency from the perspectives of temporal orientation and agency. Methods: The research data were obtained by non-participatory observation in 11 individual goal-setting sessions between 11 rehabilitees and their personal counsellors. The data were analysed in accordance with data-driven, qualitative content and narrative analysis, with an emphasis on the life-course agency approach. Results: Four temporal orientations of older rehabilitees were identified in the rehabilitation sessions: (i) timeless, (ii) past, (iii) present, and (iv) life course. For each temporal orientation, the rehabilitees displayed different kinds of agency. Fractured agency was intertwined with the timeless orientation, frozen agency was related to the past orientation, practical agency to the present orientation, and transitional agency emerged in relation to the life-course orientation. Conclusions: The article contributes to the discussion of how older adults’ rehabilitation should be reformed within the Finnish context. The study suggests that a person-centred gerontological rehabilitation process should be conceptualized in terms of an agency-based approach with a personally constructed and temporally embedded life-course perspective. This kind of conceptualizing could promote empowered cooperation and innovative interventions with flexible schedules in the rehabilitation processes of older adults. 相似文献
62.
Susanna Annibali MD DDS Isabella Bignozzi DDS Gerardo La Monaca DDS PhD Maria Paola Cristalli DDS PhD 《Clinical implant dentistry and related research》2012,14(1):3-40
Purpose: The purpose of this study was to review the reported evaluation criteria of the aesthetic result in oral implant rehabilitation. Materials and Methods: A literature search of MEDLINE, the Cochrane Collaboration, and EMBASE was performed to retrieve studies published between January 1990 and December 2008 using the following key words: “dental implants,”“clinical trial,” and “aesthetic index” (and their synonyms). A manual search of the literature published in the same period was also carried out using the following publications: Clinical Oral Implant Research, The International Journal of Oral and Maxillofacial Implants, and The International Journal of Periodontics and Restorative Dentistry. The inclusion criteria of the published studies were the following: human clinical trial, oral implant rehabilitation, at least 10 implants, at least 6 months of follow‐up from insertion of the prosthesis, and evaluation of the aesthetic result by means of an index. Results: The literature search revealed 650 relevant bibliographic references, of which 89 were selected for further analysis. A final total of 29 articles fulfilled the inclusion criteria; these included 10 retrospective case series, 11 prospective case series, 1 retrospective controlled clinical trial, 1 prospective controlled clinical trial, and 6 randomized controlled clinical trials. In general, evaluations of aesthetic results appear only in the more recent studies and refer mostly to implant rehabilitation in the maxillary anterior zone; the index used, in most cases, was the Papilla Index of Jemt. Conclusions: Although there appears to be a growing interest in aesthetics in dental implantology, there are as yet no universally accepted evaluation criteria of the aesthetic result. Therefore, further research is necessary to establish a common, complete, and reproducible index for the evaluation of aesthetic outcome that can add in the success criteria for implant therapy in the maxillary and mandibular anterior areas. 相似文献
63.
Felix Hauler Donna L. Mallery William A. McEwan Susanna R. Bidgood Leo C. James 《Proceedings of the National Academy of Sciences of the United States of America》2012,109(48):19733-19738
Tripartite motif-containing 21 (TRIM21) is a cytosolic IgG receptor that mediates intracellular virus neutralization by antibody. TRIM21 targets virions for destruction in the proteasome, but it is unclear how a substrate as large as a viral capsid is degraded. Here, we identify the ATPase p97/valosin-containing protein (VCP), an enzyme with segregase and unfoldase activity, as a key player in this process. Depletion or catalytic inhibition of VCP prevents capsid degradation and reduces neutralization. VCP is required concurrently with the proteasome, as addition of inhibitor after proteasomal degradation has no effect. Moreover, our results suggest that it is the challenging nature of virus as a substrate that necessitates involvement of VCP, since intracellularly expressed IgG Fc is degraded in a VCP-independent manner. These results implicate VCP as an important host factor in antiviral immunity. 相似文献
64.
Impact of anthropometric features on the applicability and accuracy of FibroScan® (M and XL) in overweight/obese patients
下载免费PDF全文
![点击此处可从《Journal of gastroenterology and hepatology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
65.
Susanna Carolusson 《The International journal of clinical and experimental hypnosis》2014,62(2):145-163
Hypnosis has already been proven efficient in treatment of irritable bowel syndrome (IBS). The author was responsible for the hypnotherapy in a Swedish study and adds her clinical experience with IBS patients within and beyond that study. The hypnosis was labeled dynamic, and the treatment utilized the therapists’ clinical competence and individually tailored techniques, including gut-oriented symptom relief and hypnoanalysis, separately or in combination. The author presents 2 cases, 1 with a focus on symptom relief and 1 on exploring traumatic causes. She illustrates her clinical rationale for technical flexibility from trauma resolving hypnoanalysis to symptom-alleviating suggestive hypnosis, including dynamics beyond the symptom when such are part of the case history. 相似文献
66.
67.
68.
Susanna Mört Sanna Salanterä Jaakko Matomäki Toivo T. Salmi Päivi M. Lähteenmäki 《Quality of life research》2011,20(5):787-797
Purpose
The purpose of this Finnish total cohort survey was to assess and compare the self-reported health-related quality of life (HRQL) in childhood cancer survivors to that of matched controls, to analyse demographic and disease-related factors explaining survivors’ HRQL, and to compare the results of two different HRQL instruments, 16D/17D and PedsQL™. 相似文献69.
Olivia A. Bjorkquist Susanna L. Fryer Allan L. Reiss Sarah N. Mattson Edward P. Riley 《Psychiatry Research: Neuroimaging》2010,181(2):101-107
Alcohol consumption during pregnancy can lead to a variety of cognitive and other birth defects, collectively termed fetal alcohol spectrum disorders (FASD), and including the Fetal Alcohol Syndrome (FAS). This study examined the impact of gestational alcohol exposure on the morphology of the cingulate gyrus, given this region's role in cognitive control, attention, and emotional regulation, all of which are affected in children with FASD. Thirty-one youth (ages 8–16) with histories of heavy prenatal alcohol exposure (n = 21) and demographically matched comparison subjects (n = 10) underwent structural magnetic resonance imaging. The cingulate gyrus was manually delineated, and parcellated volumes of grey and white matter were compared across groups. Alcohol-exposed individuals had significantly smaller raw cingulate grey matter, white matter, and tissue volumes compared with controls. After adjustment for respective cranial tissue constituents, only white matter volumes remained significantly reduced, and this held regardless of whether or not the child qualified for a diagnosis of FAS. A correlation between posterior cingulate grey matter volume and the WISC-III Freedom from Distractibility Index was also observed in alcohol-exposed children. These data suggest that cingulate white matter is compromised beyond global white matter hypoplasia in alcohol-exposed individuals, regardless of FAS diagnosis. The observed volumetric reductions in the cingulate gyrus may contribute to the disruptive and emotionally dysregulated behavioral profile commonly observed in this population. 相似文献
70.
Susanna Annibali MD DDS Gerardo La Monaca DDS PhD Marco Tantardini DDS & Maria Paola Cristalli DDS PhD 《Journal of prosthodontics》2009,18(2):177-183
In prosthetically guided implantology, where ideal placement of implants is determined by the definitive restoration, the use of a radiographic/surgical template plays an essential role. This article describes how to fabricate a radiographic/surgical template to be used for radiographic diagnosis of the selected implant sites and as a guide during surgery for the insertion of the implant with correct angulation. 相似文献