全文获取类型
收费全文 | 1384165篇 |
免费 | 101643篇 |
国内免费 | 6937篇 |
专业分类
耳鼻咽喉 | 20147篇 |
儿科学 | 40946篇 |
妇产科学 | 39172篇 |
基础医学 | 192384篇 |
口腔科学 | 40739篇 |
临床医学 | 119273篇 |
内科学 | 268987篇 |
皮肤病学 | 30557篇 |
神经病学 | 108722篇 |
特种医学 | 55432篇 |
外国民族医学 | 468篇 |
外科学 | 212803篇 |
综合类 | 41472篇 |
现状与发展 | 24篇 |
一般理论 | 438篇 |
预防医学 | 95878篇 |
眼科学 | 32627篇 |
药学 | 105915篇 |
70篇 | |
中国医学 | 6874篇 |
肿瘤学 | 79817篇 |
出版年
2018年 | 13639篇 |
2017年 | 11496篇 |
2016年 | 12300篇 |
2015年 | 14563篇 |
2014年 | 19772篇 |
2013年 | 28123篇 |
2012年 | 37205篇 |
2011年 | 39305篇 |
2010年 | 23825篇 |
2009年 | 22873篇 |
2008年 | 36514篇 |
2007年 | 39330篇 |
2006年 | 39779篇 |
2005年 | 38290篇 |
2004年 | 36713篇 |
2003年 | 35605篇 |
2002年 | 34872篇 |
2001年 | 64632篇 |
2000年 | 66251篇 |
1999年 | 56280篇 |
1998年 | 15190篇 |
1997年 | 13977篇 |
1996年 | 13368篇 |
1995年 | 12646篇 |
1994年 | 11797篇 |
1992年 | 42978篇 |
1991年 | 41475篇 |
1990年 | 40701篇 |
1989年 | 39660篇 |
1988年 | 37080篇 |
1987年 | 36502篇 |
1986年 | 34966篇 |
1985年 | 33155篇 |
1984年 | 24847篇 |
1983年 | 21074篇 |
1982年 | 12681篇 |
1981年 | 11580篇 |
1979年 | 23935篇 |
1978年 | 17071篇 |
1977年 | 14836篇 |
1976年 | 13386篇 |
1975年 | 15268篇 |
1974年 | 18081篇 |
1973年 | 17562篇 |
1972年 | 16811篇 |
1971年 | 15717篇 |
1970年 | 14917篇 |
1969年 | 14348篇 |
1968年 | 13460篇 |
1967年 | 12015篇 |
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
21.
22.
23.
Feng Wang Dachuan Wang Bingyi Tan Jun Dong Rongjie Feng Zenong Yuan Naiguo Wang 《Medicine》2015,94(39)
The present study aimed at examining the curative effect of modified posterior operation on treatment of Kümmell''s disease.About 30 patients of Kümmell''s disease with complete image and clinical data treated during June 2004 to July 2013 were conducted with anterior and posterior approaches, respectively. Kyphotic Cobb angle, fractured vertebra wedge angle, and the anterior and posterior heights of fractured vertebra were all measured through x-ray before and after operation, and the pain visual analog scale (VAS) was determined for evaluating the effect of operations. The injury and restoration of neurological function were assessed using Frankel classification.Patients in group A were treated with anterior operation, whereas group B was posterior operation. Postoperatively, VAS score, kyphotic Cobb angle, anterior vertebra height, and pathologic vertebra wedge angle were all significantly improved in patients with Kümmell''s disease receiving modified posterior operation (group B). Similar results were also observed in patients with anterior operation. The improvement of VAS and correction rate of kyphotic Cobb angle indicated equivalent effects of posterior and anterior operations. Meanwhile, alleviated neurological function damage was observed in 2 groups. Relevant factor analysis illustrated that there was no significant correlation of the severity and improvement rate of pain symptoms with age, medical history, anterior and posterior vertebra heights, kyphotic Cobb angle, and pathological vertebra wedge angle.Compared with traditional anterior approach, modified posterior operation, adopting transpedicular vertebral body grafting combined with vertebral pedicle screw fixation, could produce equivalent effects on kyphosis correction, pain relief, and improvement of neurological function in patients with Kümmell''s disease. 相似文献
24.
Martin R. Späth Malte P. Bartram Nicolàs Palacio-Escat K. Johanna R. Hoyer Cedric Debes Fatih Demir Christina B. Schroeter Amrei M. Mandel Franziska Grundmann Giuliano Ciarimboli Andreas Beyer Jayachandran N. Kizhakkedathu Susanne Brodesser Heike Göbel Jan U. Becker Thomas Benzing Bernhard Schermer Martin Höhne Markus M. Rinschen 《Kidney international》2019,95(2):333-349
25.
Ángel Becerra Héctor Trujillo Lucía Valencia Aurelio Rodríguez‐Pérez 《Brazilian Journal of Anesthesiology》2019,69(2):200-203
Background and objectives
A prompt and effective management of trauma patient is necessary. The aim of this case report is to highlight the importance of intraoperative echocardiography as a useful tool in patients suffering from refractory hemodynamic instability no otherwise explained.Case report
A 41 year‐old woman suffered a car accident. At the emergency department, no abnormalities were found in ECG or chest X‐ray. Abdominal ultrasound revealed the presence of abdominal free liquid and the patient was submitted to urgent exploratory laparotomy. Nevertheless, she persisted suffering arterial hypotension and metabolic acidosis. Looking for the reason of her hemodynamic instability, intraoperative transthoracic echocardiography was performed, finding out the presence of pericardial effusion. Once the cardiac surgeon extracted pericardial clots, patient's situation improved clinically and analytically.Conclusion
Every anesthesiologist should be able to use the intraoperative echocardiography as an effective tool in order to establish the appropriate measures to promote the survival of patients suffering severe trauma. 相似文献26.
27.
28.
Autoimmune comorbid diseases associated with lichen planus: a nationwide case–control study
下载免费PDF全文
![点击此处可从《Journal of the European Academy of Dermatology and Venereology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
29.
Pradeep Balasubramanian M.D. C. R. Srinivas M.D. Pavai Arunachalam M.S. M.Ch. K. S. Thirumurthy M.S. M.Ch. P. R. Rajkumar M.S. M.Ch. H. Manuvidhya M.B.B.S. 《Pediatric dermatology》2015,32(3):e78-e81
We report on a child with several café au lait spots in association with a lumbar lipomeningomyelocele as an apparently new association. Cutaneous markers, the identification of which plays a crucial role in the early diagnosis and management of spinal malformations, can accompany occult spinal dysraphism. Herein we report a case of lumbar lipomeningomyelocele associated with an overlying café au lait spot that served as a marker of occult spinal dysraphism. The patient also had segmental café au lait spots on the face, making the association unique. 相似文献
30.
Loss‐of‐function mutations in the gene encoding filaggrin underlie a Japanese family with food‐dependent exercise‐induced anaphylaxis
下载免费PDF全文
![点击此处可从《Journal of the European Academy of Dermatology and Venereology》网站下载免费的PDF全文](/ch/ext_images/free.gif)