全文获取类型
收费全文 | 198515篇 |
免费 | 2858篇 |
国内免费 | 1783篇 |
专业分类
耳鼻咽喉 | 1360篇 |
儿科学 | 6965篇 |
妇产科学 | 3325篇 |
基础医学 | 19476篇 |
口腔科学 | 1967篇 |
临床医学 | 15398篇 |
内科学 | 34529篇 |
皮肤病学 | 943篇 |
神经病学 | 17682篇 |
特种医学 | 9624篇 |
外国民族医学 | 15篇 |
外科学 | 31348篇 |
综合类 | 5806篇 |
现状与发展 | 6篇 |
一般理论 | 2篇 |
预防医学 | 19555篇 |
眼科学 | 3292篇 |
药学 | 11811篇 |
13篇 | |
中国医学 | 1661篇 |
肿瘤学 | 18378篇 |
出版年
2024年 | 62篇 |
2023年 | 318篇 |
2022年 | 780篇 |
2021年 | 1033篇 |
2020年 | 822篇 |
2019年 | 697篇 |
2018年 | 22624篇 |
2017年 | 17975篇 |
2016年 | 20104篇 |
2015年 | 1865篇 |
2014年 | 2062篇 |
2013年 | 1812篇 |
2012年 | 8604篇 |
2011年 | 22668篇 |
2010年 | 19792篇 |
2009年 | 12353篇 |
2008年 | 20678篇 |
2007年 | 22819篇 |
2006年 | 1724篇 |
2005年 | 3451篇 |
2004年 | 4099篇 |
2003年 | 5063篇 |
2002年 | 3122篇 |
2001年 | 847篇 |
2000年 | 1102篇 |
1999年 | 868篇 |
1998年 | 642篇 |
1997年 | 651篇 |
1996年 | 431篇 |
1995年 | 437篇 |
1994年 | 354篇 |
1993年 | 248篇 |
1992年 | 346篇 |
1991年 | 336篇 |
1990年 | 363篇 |
1989年 | 312篇 |
1988年 | 246篇 |
1987年 | 210篇 |
1986年 | 167篇 |
1985年 | 182篇 |
1984年 | 76篇 |
1983年 | 80篇 |
1982年 | 47篇 |
1981年 | 34篇 |
1980年 | 49篇 |
1974年 | 39篇 |
1969年 | 33篇 |
1938年 | 60篇 |
1932年 | 56篇 |
1930年 | 46篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
32.
Debra L. Roter Richard M. Frankel Judith A. Hall David Sluyter 《Journal of general internal medicine》2006,21(1):28-34
Relationship-centered care reflects both knowing and feeling: the knowledge that physician and patient bring from their respective domains of expertise, and the physician’s and patient’s experience, expression, and perception of emotions during the medical encounter. These processes are conveyed and reciprocated in the care process through verbal and nonverbal communication. We suggest that the emotional context of care is especially related to nonverbal communication and that emotion-related communication skills, including sending and receiving nonverbal messages and emotional self-awareness, are critical elements of high-quality care. Although nonverbal behavior has received far less study than other care processes, the current review argues that it holds significance for the therapeutic relationship and influences important outcomes including satisfaction, adherence, and clinical outcomes of care. 相似文献
33.
杨娅 Thomas Bartel Loredana Latina Guido Caspari 王新房 Raimund Erbel 《华中科技大学学报(医学英德文版)》2002,22(2):158-163
Coronary flow reserve (CFR) has been used toassess coronary microcirculation and epicardial coro-nary stenoses[1— 3 ] . CFR is defined as the ratio ofcoronary flow under maximal coronary vasodilatationto coronary flow under resting conditions[4 ] .Whenthe cross- sectional area of epicardial coronary arteriesis constant,coronary flow velocity (CFV) ratios areequal to volume flow ratios.The most common method used clinically formeasuring CFVR is intracoronary Doppler flow(ICD) analysis re… 相似文献
34.
35.
Plasmid DNA encoding transforming growth factor-beta1 suppresses chronic disease in a streptococcal cell wall-induced arthritis model. 总被引:6,自引:0,他引:6 下载免费PDF全文
X Y Song M Gu W W Jin D M Klinman S M Wahl 《The Journal of clinical investigation》1998,101(12):2615-2621
Transforming growth factor beta is a potent immunomodulator with both pro- and antiinflammatory activities. Based on its immunosuppressive actions, exogenous TGF-beta has been shown to inhibit autoimmune and chronic inflammatory diseases. To further explore the potential therapeutic role of TGF-beta, we administered a plasmid DNA encoding human TGF-beta1 intramuscularly to rats with streptococcal cell wall-induced arthritis. A single dose of 300 microg plasmid DNA encoding TGF-beta1, but not vector DNA, administered at the peak of the acute phase profoundly suppressed the subsequent evolution of chronic erosive disease typified by disabling joint swelling and deformity (articular index = 8.17+/-0. 17 vs. 1.25+/-0.76, n = 6, day 26, P < 0.01). Moreover, delivery of the TGF-beta1 DNA even as the chronic phase commenced virtually eliminated subsequent inflammation and arthritis. Both radiologic and histopathologic as well as molecular evidence supported the marked inhibitory effect of TGF-beta1 DNA on synovial pathology, with decreases in the inflammatory cell infiltration, pannus formation, cartilage and bone destruction, and the expression of proinflammatory cytokines that characterize this model. Increases in TGF-beta1 protein were detected in the circulation of TGF-beta1 DNA-treated animals, consistent with the observed therapeutic effects being TGF-beta1 dependent. These observations provide the first evidence that gene transfer of plasmid DNA encoding TGF-beta1 provides a mechanism to deliver this potent cytokine that effectively suppresses ongoing inflammatory pathology in arthritis. 相似文献
36.
大脑后动脉交通前段及其内穿支研究 总被引:2,自引:0,他引:2
本文介绍Willis动脉环后半环大脑后动脉及其内穿支的显微解剖,大脑后动脉交通前段内穿支是脑深部的重要供血血管之一,100%的病例双侧具有该血管。 相似文献
37.
Irwin L. Flink 《Brain structure & function》2002,205(3):235-244
38.
39.
40.
本文报道14例甲亢危象,其发病率为4.5%,其发病与感染、劳累、情绪激动及同位素治疗有关。指出同位素治疗甲亢初期应服用抗甲状腺药物,讨论了淡漠型危象的有关问题。 相似文献