全文获取类型
收费全文 | 533篇 |
免费 | 22篇 |
国内免费 | 47篇 |
专业分类
耳鼻咽喉 | 4篇 |
儿科学 | 21篇 |
妇产科学 | 26篇 |
基础医学 | 39篇 |
口腔科学 | 21篇 |
临床医学 | 75篇 |
内科学 | 78篇 |
皮肤病学 | 8篇 |
神经病学 | 28篇 |
特种医学 | 172篇 |
外科学 | 20篇 |
综合类 | 18篇 |
预防医学 | 32篇 |
药学 | 46篇 |
中国医学 | 1篇 |
肿瘤学 | 13篇 |
出版年
2017年 | 5篇 |
2016年 | 4篇 |
2015年 | 31篇 |
2014年 | 33篇 |
2013年 | 63篇 |
2012年 | 14篇 |
2011年 | 10篇 |
2010年 | 16篇 |
2009年 | 18篇 |
2008年 | 6篇 |
2007年 | 35篇 |
2006年 | 3篇 |
2005年 | 9篇 |
2004年 | 7篇 |
2003年 | 5篇 |
2002年 | 10篇 |
2001年 | 5篇 |
2000年 | 9篇 |
1999年 | 7篇 |
1998年 | 19篇 |
1997年 | 24篇 |
1996年 | 15篇 |
1995年 | 22篇 |
1994年 | 17篇 |
1993年 | 13篇 |
1992年 | 7篇 |
1991年 | 10篇 |
1990年 | 8篇 |
1989年 | 17篇 |
1988年 | 14篇 |
1987年 | 9篇 |
1986年 | 8篇 |
1985年 | 7篇 |
1984年 | 8篇 |
1983年 | 9篇 |
1982年 | 8篇 |
1981年 | 5篇 |
1980年 | 7篇 |
1976年 | 10篇 |
1975年 | 3篇 |
1971年 | 3篇 |
1968年 | 3篇 |
1949年 | 4篇 |
1948年 | 3篇 |
1947年 | 6篇 |
1936年 | 2篇 |
1935年 | 2篇 |
1925年 | 2篇 |
1922年 | 2篇 |
1908年 | 2篇 |
排序方式: 共有602条查询结果,搜索用时 15 毫秒
41.
The orbital apex, formed by the superior orbital fissure and optic canal, is the cross-road between the orbit and the intracranial structures. Pathological processes may extend intracranially via the superior orbital fissure and vice versa. In addition to intrinsic soft tissue lesions, various pathological processes may involve the surrounding osseous anatomy. Malignant lesions arising from adjacent structures or from haematogeneous metastasis may also infiltrate this region. 相似文献
42.
急性淋巴细胞白血病(上) 总被引:2,自引:0,他引:2
急性淋巴细胞白血病是淋巴前体细胞异常引起的恶性疾病,儿童与成人均可能发生。儿童发病高峰2~5岁。有效治疗的稳步进展使本病在儿童中的治愈率80%以上,同时为新的治疗方案提供了良机,新方案将保留我们在白血病无病生存病例中获得的治疗经验,同时减轻当前强化治疗方案中的毒副作用。 相似文献
43.
LL Patton V Ramirez‐Amador G Anaya‐Saavedra W Nittayananta M Carrozzo K Ranganathan 《Oral diseases》2013,19(6):533-550
Human immunodeficiency virus‐related oral lesions (HIV‐OLs), such as oral candidiasis (OC) and oral hairy leukoplakia (OHL), have been recognized as indicators of immune suppression since the beginning of the global HIV epidemic. The diagnosis and management of HIV disease and spectrum of opportunistic infection has changed over the past 30 years as our understanding of the infection has evolved. We investigated the following controversial topics: (i) Are oral manifestations of HIV still relevant after the introduction of highly active antiretroviral therapy (HAART)? (ii) Can we nowadays still diagnose HIV infection through oral lesions? (iii) Is the actual classification of oral manifestations of HIV adequate or does it need to be reviewed and updated? (iv) Is there any novelty in the treatment of oral manifestations of HIV infection? Results from extensive literature review suggested the following: (i) While HAART has resulted in significant reductions in HIV‐OLs, many are still seen in patients with HIV infection, with OC remaining the most common lesion. While the relationship between oral warts and the immune reconstitution inflammatory syndrome is less clear, the malignant potential of oral human papillomavirus infection is gaining increasing attention. (ii) Effective antiretroviral therapy has transformed HIV from a fatal illness to a chronic manageable condition and as a result expanded screening policies for HIV are being advocated both in developed and in developing countries. Affordable, reliable, and easy‐to‐use diagnostic techniques have been recently introduced likely restricting the importance of HIV‐OLs in diagnosis. (iii) The 1993 EC‐Clearinghouse classification of HIV‐OLs is still globally used despite controversy on the relevance of periodontal diseases today. HIV‐OL case definitions were updated in 2009 to facilitate the accuracy of HIV‐OL diagnoses by non‐dental healthcare workers in large‐scale epidemiologic studies and clinical trials. (iv) Research over the last 6 years on novel modalities for the treatment of HIV‐OLs has been reported for OC and OHL. 相似文献
44.
目的探讨冠心病(CHD)患者实施健康信念模式干预的效果。方法将140例CHD患者随机分对照组和干预组,各70例,对照组给予常规治疗和护理,干预组在对照组的基础上给予健康信念模式干预措施;比较两组的遵医行为、干预效果及生活质量评分。结果实施干预后,干预组的遵医行为备维度得分均明显好于对照组(P〈0.0.01);干预组的各干预效果指标均明显好于对照组(P〈0.05):干预组的生活质量各维度指标也明显好于对照组(P〈0.01)。结论CHD患者实施健康信念模式干预后,明显提高CHD患者的遵医行为和生活质量评分,干预效果明显。 相似文献
45.
46.
Friction, capacitance and transepidermal water loss (TEWL) in dry atopic and normal skin 总被引:2,自引:0,他引:2
MARIE LODÉN HÅKAN OLSSON TONY AXÉLL YLVA WERNER LINDE† 《The British journal of dermatology》1992,126(2):137-141
The biophysical properties of non-eczematous skin at three locations in atopics and non-atopics were characterized using non-invasive physical methods. Skin friction was measured with a newly developed sliding friction instrument, the degree of hydration with a capacitance meter (Corneometer CM 820), and the transepidermal water loss (TEWL) was determined using an Evaporimeter EP1. The areas examined (dorsum of the hand, volar forearm and lower back) showed lower values of friction and capacitance in the atopic patients than did corresponding sites in the normal controls. In most areas a significant correlation between friction and capacitance was found. The TEWL was increased in atopic skin, but TEWL seems to correlate neither to friction nor to capacitance. 相似文献
47.
Effect of Different Ablation Settings on Acute Complications Using the Novel Irrigated Multipolar Radiofrequency Ablation Catheter (nMARQ) 下载免费PDF全文
THOMAS DENEKE M.D. Ph.D. PATRICK MÜLLER M.D. PHILIPP HALBFAß M.D. ATILLA SZÖLLÖSI M.D. MARKUS ROOS M.D. JOACHIM KRUG M.D. FRANZISKA FOCHLER M.D. ANJA SCHADE M.D. RAINER SCHMITT M.D. GEORGIOS CHRISTOPOULOS M.D. ANDREAS MÜGGE M.D. KARIN NENTWICH M.D. 《Journal of cardiovascular electrophysiology》2015,26(10):1063-1068
48.
49.
50.
A retrospective study of 100 cerebral computed tomography scans interpreted as displaying subarachnoid hemorrhage was undertaken to determine the frequency of blood in the interpeduncular fossa as a useful radiographic sign. The results indicate that the interpeduncular fossa sign is second only to blood in the Sylvian fissure-circular sulcus area as a reliable indicator of subarachnoid hemorrhage on CT scans. 相似文献