全文获取类型
收费全文 | 6759篇 |
免费 | 433篇 |
国内免费 | 18篇 |
学科分类
医药卫生 | 7210篇 |
出版年
2023年 | 58篇 |
2022年 | 48篇 |
2021年 | 263篇 |
2020年 | 147篇 |
2019年 | 212篇 |
2018年 | 259篇 |
2017年 | 164篇 |
2016年 | 207篇 |
2015年 | 205篇 |
2014年 | 294篇 |
2013年 | 348篇 |
2012年 | 493篇 |
2011年 | 458篇 |
2010年 | 292篇 |
2009年 | 267篇 |
2008年 | 397篇 |
2007年 | 462篇 |
2006年 | 438篇 |
2005年 | 362篇 |
2004年 | 325篇 |
2003年 | 301篇 |
2002年 | 246篇 |
2001年 | 110篇 |
2000年 | 79篇 |
1999年 | 69篇 |
1998年 | 55篇 |
1997年 | 34篇 |
1996年 | 46篇 |
1995年 | 22篇 |
1994年 | 27篇 |
1993年 | 30篇 |
1992年 | 29篇 |
1991年 | 41篇 |
1990年 | 27篇 |
1989年 | 29篇 |
1988年 | 43篇 |
1987年 | 35篇 |
1986年 | 32篇 |
1985年 | 22篇 |
1984年 | 30篇 |
1983年 | 19篇 |
1982年 | 13篇 |
1980年 | 12篇 |
1978年 | 15篇 |
1977年 | 12篇 |
1975年 | 14篇 |
1973年 | 13篇 |
1972年 | 12篇 |
1971年 | 10篇 |
1970年 | 20篇 |
排序方式: 共有7210条查询结果,搜索用时 15 毫秒
81.
82.
N. Rajšić 《Clinical neurophysiology》2013,124(7):e11-e12
83.
The distal radio-ulnar joint can be a source of ulnar-sided wrist pain. The complex anatomy in this region of the wrist can make diagnosis of distal radio-ulnar joint problems challenging. An understanding of the anatomy can aid an accurate diagnosis. An overview of the anatomy, biomechanics and conditions of the distal radio-ulnar joint is provided, together with other common causes of ulnar-sided wrist pain. 相似文献
84.
85.
Barboi Alexandru Gibbons Christopher H. Bennaroch Eduardo E. Biaggioni Italo Chapleau Mark W. Chelimsky Gisela Chelimsky Thomas Cheshire William P. Claydon Victoria E. Freeman Roy Goldstein David S. Joyner Michael J. Kaufmann Horacio Low Phillip A. Norcliffe-Kaufmann Lucy Robertson David Shibao Cyndya A. Singer Wolfgang Snapper Howard Vernino Steven Raj Satish R. 《Clinical autonomic research》2020,30(2):183-184
Clinical Autonomic Research - 相似文献
86.
87.
Kushal Naha Sowjanya Dasari Ramamoorthi Kusugodlu Mukhyaprana Prabhu 《The Australasian medical journal》2012,5(8):455-458
A 32-year-old diabetic male, with a past history of head injury and seizures, presented with a painful swelling over his forehead present for the past three months. Cranial MRI demonstrated the presence of a scalp collection with extradural extension through a bony defect. Biopsy from the area showed caseating necrosis suggestive of tuberculosis. Although the patient failed to return for initiation of anti-tubercular therapy for the next 11 months, the swelling did not progress, and there were no constitutional symptoms. The indolent nature of the swelling prompted re-evaluation and delayed cultures of pus from the collection grew Burkholderia pseudomallei. 相似文献
88.
Amit Goel Dharmendra Singh Bhadauria Anupma Kaul Narayan Prasad Amit Gupta Raj Kumar Sharma Praveer Rai Rakesh Aggarwal 《Indian journal of gastroenterology》2017,36(2):137-140
In recent past, direct-acting anti-viral drugs (DAAs) have become the standard of care for the treatment of hepatitis C virus (HCV) infection. However, the experience with the use of these drugs in Indian renal transplant recipients is limited. We retrospectively reviewed our experience with DAA-based treatment for HCV infection in such patients. Between April 2015 and December 2016, six adults (median age 41 [range 34–52] years, male 5; GT1 2, GT3 3, and GT4 1; including three with prior failed interferon-based treatment) had received genotype-guided, DAA-based anti-HCV treatment 1 to 158 (median 15) months after renal transplantation. Of them, four completed the planned 24-week treatment without any significant adverse event. One of them had increase in serum creatinine after 16 weeks of treatment with sofosbuvir and daclatasvir, with acute interstitial nephritis on kidney biopsy; his renal function improved on stopping the drugs. The other patient had preexisting mild renal dysfunction, which worsened after 8 weeks of sofosbuvir-ledipasvir treatment; this did not reverse on stopping treatment. All the six patients achieved undetectable HCV RNA after 4 weeks of treatment and also achieved sustained virologic response, i.e. lack of detectable HCV RNA in serum 12 weeks after stopping treatment. Overall, DAA-based treatment was effective in treating HCV infection in our renal transplant recipients; however, caution and monitoring of renal function during such treatment is advisable in patients who have additional factors that predispose to renal injury. 相似文献
89.
Sanjay Pandanaboyana Devender Mittapalli Ahsan Rao Raj Prasad Niaz Ahmad 《The surgeon》2014,12(2):87-93
BackgroundThis metaanalysis was designed to systematically analyse all published randomized controlled trials comparing self-gripping mesh (ProGrip) and sutured mesh to analyse early and long term outcomes for open inguinal hernia repair.MethodsA literature search was performed using the Cochrane Colorectal Cancer Group Controlled Trials Register, the Cochrane Central Register of Controlled Trials in the Cochrane Library, MEDLINE, Embase and Science Citation Index Expanded. Randomized trials comparing self-gripping mesh with sutured mesh were included. Statistical analysis was performed using Review Manager Version 5.2 software. The primary outcome measures were hernia recurrence and chronic pain after operation. Secondary outcome measures included surgical time, wound complications and perioperative complications.ResultsFive randomized trials were identified as suitable, including 1170 patients. There was no significant difference between the two types of mesh repairs in perioperative complications, wound haematoma, chronic groin pain and hernia recurrence. Wound infection was lower in self gripping mesh group compared to sutured mesh but this was not statistically significant (risk ratio (RR) 0.57, 95% confidence interval 0.30–1.06, P = 0.08). The duration of operation was significantly shorter with self-gripping mesh compared to sutured mesh with a mean difference of ?5.48 min [?9.31, ?1.64] Z = 2.80 (P = 0.005).ConclusionSelf-gripping mesh was associated with shorter operative time compared to sutured mesh. Both types of mesh repairs have comparable perioperative and long term outcomes. 相似文献
90.
Hirotsugu Mihara M.D. Kentaro Shibayama M.D. Kenji Harada M.D. Javier Berdejo M.D. Yuji Itabashi M.D. Raj R. Makkar M.D. Takahiro Shiota M.D. 《Echocardiography (Mount Kisco, N.Y.)》2014,31(5):E142-E144
Paravalvular regurgitation (PVR) after transcatheter aortic valve replacement (TAVR) is one of the major complications with negative clinical prognosis. Therefore, its prediction is important for further improvement of the outcome. We present a case with TAVR, in which we successfully evaluated aortic valve calcification protruding inward and into the left ventricular outflow tract by real time three‐dimensional transesophageal echocardiography, and predicted significant PVR after the procedure. In conclusion, device landing zone calcification protruding inward is a key for the prediction of significant PVR after TAVR. 相似文献