全文获取类型
收费全文 | 248254篇 |
免费 | 21481篇 |
国内免费 | 9957篇 |
专业分类
耳鼻咽喉 | 2800篇 |
儿科学 | 4475篇 |
妇产科学 | 2682篇 |
基础医学 | 27593篇 |
口腔科学 | 3855篇 |
临床医学 | 27296篇 |
内科学 | 42191篇 |
皮肤病学 | 3111篇 |
神经病学 | 16089篇 |
特种医学 | 10230篇 |
外国民族医学 | 36篇 |
外科学 | 32058篇 |
综合类 | 31768篇 |
现状与发展 | 38篇 |
一般理论 | 119篇 |
预防医学 | 19192篇 |
眼科学 | 5678篇 |
药学 | 22352篇 |
155篇 | |
中国医学 | 9861篇 |
肿瘤学 | 18113篇 |
出版年
2024年 | 490篇 |
2023年 | 2462篇 |
2022年 | 6179篇 |
2021年 | 9766篇 |
2020年 | 6848篇 |
2019年 | 6782篇 |
2018年 | 7431篇 |
2017年 | 6692篇 |
2016年 | 6722篇 |
2015年 | 9542篇 |
2014年 | 12588篇 |
2013年 | 13677篇 |
2012年 | 20610篇 |
2011年 | 21914篇 |
2010年 | 15086篇 |
2009年 | 12942篇 |
2008年 | 16704篇 |
2007年 | 16748篇 |
2006年 | 15278篇 |
2005年 | 14194篇 |
2004年 | 11506篇 |
2003年 | 10625篇 |
2002年 | 9265篇 |
2001年 | 4330篇 |
2000年 | 3414篇 |
1999年 | 2733篇 |
1998年 | 2007篇 |
1997年 | 1855篇 |
1996年 | 1318篇 |
1995年 | 1212篇 |
1994年 | 1060篇 |
1993年 | 844篇 |
1992年 | 738篇 |
1991年 | 645篇 |
1990年 | 530篇 |
1989年 | 483篇 |
1988年 | 419篇 |
1987年 | 388篇 |
1986年 | 349篇 |
1985年 | 311篇 |
1984年 | 310篇 |
1983年 | 252篇 |
1982年 | 304篇 |
1981年 | 282篇 |
1980年 | 220篇 |
1979年 | 168篇 |
1978年 | 165篇 |
1977年 | 146篇 |
1976年 | 104篇 |
1975年 | 113篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
3.
4.
5.
Kara S. Tanaka MD Veronica R. Andaya BA Steven W. Thorpe MD Kenneth R. Gundle MD James B. Hayden MD Yee-Cheen Duong MD Raffi S. Avedian MD David G. Mohler MD Lee J. Morse MD Melissa N. Zimel MD Richard J. O'Donnell MD Andrew Fang MD Robert Lor Randall MD Tina H. Tran BS Christin New BA Rosanna L. Wustrack MD other members of Study Group FORCE 《Journal of surgical oncology》2023,127(1):148-158
6.
Triposkiadis Filippos Xanthopoulos Andrew Skoularigis John Starling Randall C. 《Heart failure reviews》2022,27(6):1991-2003
Heart Failure Reviews - The nitric oxide (NO)–guanylate cyclase (GC)–cyclic guanosine monophosphate (cGMP) pathway plays an important role in cardiovascular, pulmonary and renal... 相似文献
7.
8.
9.
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
10.
Andy KH Lim 《World journal of gastroenterology : WJG》2020,26(10):1020-1028
Rhabdomyolysis is a syndrome of skeletal muscle injury with release of cellular constituents such as potassium,phosphate,urate and intracellular proteins such as myoglobin into the circulation,which may cause complications including acute kidney injury,electrolyte disturbance and cardiac instability.Abnormal liver function tests are frequently observed in cases of severe rhabdomyolysis.Typically,there is an increase in serum aminotransferases,namely aspartate aminotransferase and alanine aminotransferase.This raises the question of liver injury and often triggers a pathway of investigation which may lead to a liver biopsy.However,muscle can also be a source of the increased aminotransferase activity.This review discusses the dilemma of finding abnormal liver function tests in the setting of muscle injury and the potential implications of such an association.It delves into some of the clinical and experimental evidence for correlating muscle injury to raised aminotransferases,and discusses pathophysiological mechanisms such as oxidative stress which may cause actual liver injury.Serum aminotransferases lack tissue specificity to allow clinicians to distinguish primary liver injury from muscle injury.This review also explores potential approaches to improve the accuracy of our diagnostic tools,so that excessive or unnecessary liver investigations can be avoided. 相似文献