全文获取类型
收费全文 | 15225篇 |
免费 | 1043篇 |
国内免费 | 36篇 |
专业分类
耳鼻咽喉 | 130篇 |
儿科学 | 617篇 |
妇产科学 | 468篇 |
基础医学 | 2216篇 |
口腔科学 | 268篇 |
临床医学 | 2098篇 |
内科学 | 2454篇 |
皮肤病学 | 287篇 |
神经病学 | 1734篇 |
特种医学 | 284篇 |
外科学 | 1074篇 |
综合类 | 164篇 |
现状与发展 | 1篇 |
一般理论 | 37篇 |
预防医学 | 2257篇 |
眼科学 | 216篇 |
药学 | 844篇 |
中国医学 | 11篇 |
肿瘤学 | 1144篇 |
出版年
2023年 | 140篇 |
2022年 | 157篇 |
2021年 | 350篇 |
2020年 | 256篇 |
2019年 | 380篇 |
2018年 | 386篇 |
2017年 | 339篇 |
2016年 | 300篇 |
2015年 | 367篇 |
2014年 | 521篇 |
2013年 | 836篇 |
2012年 | 1134篇 |
2011年 | 1183篇 |
2010年 | 593篇 |
2009年 | 556篇 |
2008年 | 1016篇 |
2007年 | 994篇 |
2006年 | 1028篇 |
2005年 | 1011篇 |
2004年 | 919篇 |
2003年 | 848篇 |
2002年 | 844篇 |
2001年 | 122篇 |
2000年 | 80篇 |
1999年 | 121篇 |
1998年 | 193篇 |
1997年 | 152篇 |
1996年 | 109篇 |
1995年 | 112篇 |
1994年 | 98篇 |
1993年 | 80篇 |
1992年 | 82篇 |
1991年 | 59篇 |
1990年 | 60篇 |
1989年 | 47篇 |
1988年 | 46篇 |
1987年 | 32篇 |
1986年 | 62篇 |
1985年 | 51篇 |
1984年 | 61篇 |
1983年 | 72篇 |
1982年 | 87篇 |
1981年 | 58篇 |
1980年 | 57篇 |
1979年 | 32篇 |
1978年 | 37篇 |
1977年 | 26篇 |
1976年 | 20篇 |
1974年 | 27篇 |
1973年 | 19篇 |
排序方式: 共有10000条查询结果,搜索用时 203 毫秒
181.
Ashley Budu-Aggrey Sarah H. Watkins Ben Brumpton Mari Løset Jess Tyrrell Ellen H. Modalsli Gunnhild Åberge Vie Tom Palmer Lars G. Fritsche Jonas Bille Nielsen Pål Richard Romundstad George Davey Smith Bjørn Olav Åsvold Lavinia Paternoster Sara J. Brown 《The Journal of allergy and clinical immunology》2021,147(1):400-403
182.
Ingvild O. Moberg Michael R. Schneider Kim A. Tønseth Ellen Schlichting 《Journal of plastic surgery and hand surgery》2018,52(4):234-239
Background: Women with a BRCA mutation have the option of undergoing prophylactic mastectomy and immediate breast reconstruction; however, the potential negative effects of reconstruction on women’s physical and psychological well-being are unclear. This study aimed to investigate complications, patient-reported pain, health-related quality-of-life (HRQoL) and satisfaction following reconstructive surgery at Oslo University Hospital between 2006 and 2013.Methods: Data were collected retrospectively from the records of 238 patients. A cross-sectional survey was conducted to collect patient-reported HRQoL and satisfaction with outcome using the Short Form-12 questionnaires and Breast-Q. The self-administered Leeds assessment of neuropathic symptoms and signs was used to assess neuropathic pain.Results: The majority of participants (89.5%) underwent implant-based breast reconstruction (IBBR); the remainder underwent autologous-tissue breast reconstruction (ATBR). Overall, 28.6% had complications within 30?days of surgery and 14.6% required resurgery because of complications. Women who underwent IBBR had a later onset of complications than those undergoing ATBR. Participants in the survey (n?=?175 of 219, response rate 79.9%) reported similar HRQoL to an age-matched general female population. Few (2.9%) reported neuropathic pain. Patients who underwent IBBR were significantly less satisfied with the reconstructed breast (p?=?.001) and overall outcome (p?=?.02) than those who underwent ATBR, but there were no significant differences in HRQoL scores between the two groups.Conclusions: Overall, 28.6% of the women had complications within 30?days and 14.6% needed resurgery. Few had neuropathic pain. Women who underwent ATBR were more satisfied with the overall outcome than those who underwent IBBR. 相似文献
183.
184.
Jordana Laks Christine Khandelwal Eleni Footman Margaret Jamison Ellen Roberts 《Teaching and learning in medicine》2016,28(2):210-218
Problem: Medical students have limited exposure to Geriatrics in their traditional training. Service-learning offers students the opportunity to engage with older adult communities and become more comfortable interacting with this population. Intervention: A preclinical elective course was developed to expand medical students' experiences in Geriatrics through service-learning. In this course, students conducted needs assessments in diverse older adult communities, created health education projects to address community-identified needs, and reflected on their experiences through written assignments and presentations. The course instructor presented lectures on special topics in Geriatrics, including ageism and health literacy. The curriculum aimed to familiarize students with older adults' needs in a variety of settings. Context: Over 3 years, 74 students participated in the service-learning course. Students were assigned to older adult community sites, where they conducted needs assessments and designed and implemented original educational projects targeting community concerns. Program evaluation methods included a validated survey assessing students' attitudes toward older adults, course evaluations, review of student assignments and projects, and feedback from older adult participants and site coordinators. Outcome: Students gained hands-on experience working with older adults and designing appropriate health education projects. Analysis of attitude surveys demonstrated students' increased interest in Geriatrics as a career. Both students and older adult participants described enjoyable, valuable experiences gained from service-learning activities. Lessons Learned: Students appreciated the combination of community and classroom learning about Geriatrics. Service-learning was most constructive at sites with responsive coordinators, engaged older adults, and a need for health education resources. The course challenged students to assess health needs in communities that included cognitively impaired elders and to design educational projects tailored to older adults. 相似文献
185.
186.
Ben Davidson Vera Maria Abeler Ellen Hellesylt Arild Holth Ie-Ming Shih Tone Skeie-Jensen Li Chen Yanqin Yang Tian-Li Wang 《Gynecologic oncology》2013,128(2):349-355
ObjectiveEndometrial stromal sarcoma (ESS) and leiomyosarcoma (LMS) are the two most common uterine sarcomas, but both are rare tumors. The aim of the present study was to compare the global gene expression patterns of ESS and LMS.MethodsGene expression profiles of 7 ESS and 13 LMS were analyzed using the HumanRef-8 BeadChip from Illumina. Differentially expressed candidate genes were validated using quantitative real-time PCR and immunohistochemistry.ResultsUnsupervised hierarchical clustering using all 54,675 genes in the array separated ESS from LMS samples. We identified 549 unique probes that were significantly differentially expressed in the two malignancies by greater than 2-fold with 1% FDR cutoff using one-way ANOVA with Benjamini–Hochberg correction, of which 336 and 213 were overexpressed in ESS and LMS, respectively. Genes overexpressed in ESS included SLC7A10, EFNB3, CCND2, ECEL1, ITM2A, NPW, PLAG1 and GCGR. Genes overexpressed in LMS included CDKN2A, FABP3, TAGLN, JPH2, GEM, NAV2 and RAB23. The top 100 genes overexpressed in LMS included those coding for myosin light chain and caldesmon, but not the genes coding for desmin or actin. CD10 was not overexpressed in ESS. Results for selected genes were validated by quantitative real-time PCR and immunohistochemistry.ConclusionsWe present the first study in which gene expression profiling was shown to distinguish between ESS and LMS. The molecular signatures unique to each of these malignancies may aid in expanding the diagnostic battery for their differentiation, and may provide a molecular basis for prognostic studies and therapeutic target discovery. 相似文献
187.
PurposeIn residential long-term care (LTC), a growing interest exists in the older residents’ Quality of Life (QoL). The Active Ageing-concept (AA) extended this focus, since AA has the aim to enhance QoL by optimising the opportunities for health, participation and security. In LTCs, AA can be outlined by 9 determinants. This systematic review aimed at identifying interventions to improve the QoL of LTC-residents. These interventions were organised according to the AA-determinants.MethodsPubMed, Web of Science, Psychinfo and Sociological Abstracts were screened systematically. Articles were excluded when they only concerned a specific group of LTC-residents.ResultsThirty five relevant articles, encompassing 3910 subjects were found. These concerned interventions concentrating on one or more of the 9 AA-determinants. The largest proportion of interventions regarded the physical activity level or the psychological factors of the residents. Overall, no systematic effects on QoL could be found and a low methodological quality was generally present.ConclusionCurrently, studies aimed at enhancing the QoL of older LTC-resident are limited and often directed to physical and psychological interventions. The lack of a systematic effect on QoL is possibly related to the fact that these interventions were often not multidimensional, whereas QoL is a multidimensional concept. 相似文献
188.
189.
190.