首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   31014篇
  免费   1510篇
  国内免费   78篇
耳鼻咽喉   395篇
儿科学   2231篇
妇产科学   676篇
基础医学   3437篇
口腔科学   556篇
临床医学   1829篇
内科学   5867篇
皮肤病学   1149篇
神经病学   1547篇
特种医学   1102篇
外科学   4739篇
综合类   1015篇
一般理论   10篇
预防医学   1480篇
眼科学   1575篇
药学   2580篇
  2篇
中国医学   169篇
肿瘤学   2243篇
  2023年   200篇
  2022年   490篇
  2021年   934篇
  2020年   523篇
  2019年   595篇
  2018年   824篇
  2017年   556篇
  2016年   804篇
  2015年   754篇
  2014年   1152篇
  2013年   1408篇
  2012年   1991篇
  2011年   2099篇
  2010年   1131篇
  2009年   931篇
  2008年   1568篇
  2007年   1669篇
  2006年   1454篇
  2005年   1355篇
  2004年   1242篇
  2003年   1096篇
  2002年   948篇
  2001年   756篇
  2000年   712篇
  1999年   621篇
  1998年   266篇
  1997年   205篇
  1996年   161篇
  1995年   154篇
  1994年   129篇
  1993年   146篇
  1992年   360篇
  1991年   395篇
  1990年   352篇
  1989年   365篇
  1988年   312篇
  1987年   282篇
  1986年   269篇
  1985年   284篇
  1984年   220篇
  1983年   182篇
  1979年   241篇
  1978年   158篇
  1977年   148篇
  1976年   135篇
  1975年   163篇
  1974年   154篇
  1973年   176篇
  1972年   138篇
  1971年   122篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
91.
92.
Background:Keloids of the ear are common problems. Various treatment modalities are available for the treatment of ear keloids. Surgical excision with intralesional steroid injection along with compression therapy has the least recurrence rate. Various types of devices are available for pressure therapy. Pressure applied by these devices is uncontrolled and is associated with the risk of pressure necrosis. We describe here a simple and easy to use device to measure pressure applied by these clips for better outcome.Objectives:To devise a simple method to measure the pressure applied by various pressure clips used in ear keloid pressure therapy.Results:The pressure applied by different clips was variable. The spring clips were adjustable by slight variation in the design whereas the pressure applied by binder clips and magnet discs was not adjustable.Conclusion:The uncontrolled/suboptimal pressure applied by certain pressure clips can be monitored to provide optimal pressure therapy in ear keloid for better outcome.KEY WORDS: Clips, device, earlobe, magnetic discs, measure, pressure therapy, splint  相似文献   
93.
Augmentation rhinoplasty can be carried out using a wide range of materials including autologous bone and/or cartilage as well as alloplasts. Use of biologic bone and cartilage grafts results in lower infection rates, but they are associated with long-term resorption and donor-site morbidity. Alloplastic materials, in particular silicone, have been associated in literature with extrusion, necrosis of the tip, mobility and deviation or displacement of the implant, immobile nasal tip and infection. However, they have the advantages of being readily available and easy to reshape with no requirement for harvesting autografts.

Aim:

To overcome these problems associated with silicone implants for which the authors have devised a novel technique, the “rideon technique”.

Materials and Methods:

The present study was carried out on 11 patients over a period of 4 years. The authors have devised a simple technique to fix the silicone implant and retain it in place. Restricting the implant to only dorsum avoided common complications related to the silicone implant.

Results:

The authors have used this technique in 11 patients with encouraging results. Follow-up ranged from 12 months to 36 months during which patients were assessed for implant mobility, implant extrusion and tip necrosis. There was no incidence of above mentioned complications in these patients.

Conclusion:

The “rideon technique” provides excellent stability to silicone implants and restricting the implant only to dorsum not only eliminates chances of tip necrosis and thus implant extrusion but also maintains natural shape, feel and mobility of the tip.KEY WORDS: Alloplasts, autografts, rhinoplasty, silicone implants  相似文献   
94.
95.
96.
97.
98.
99.
BackgroundTumor lysis syndrome (TLS) is a metabolic emergency in hematology patients. The recommended dose of rasburicase for the management of TLS is 0.2 mg/kg per day for 5 days, which is cost prohibitive for many patients. We sought to determine the efficacy of single low-dose rasburicase in the prevention and treatment of hyperuricemia in TLS.Patients and MethodsWe planned a prospective study for the safety and efficacy of fixed (weight based) dose of rasburicase to manage TLS. Patients diagnosed with leukemia/lymphoma with laboratory or clinically confirmed TLS or presence of ≥ 2 high-risk factors and serum uric acid > 7.5 mg/dL were included. The primary endpoint was uric acid normalization (< 7.5 mg/dL) within 24 hours of rasburicase administration.ResultsFifty-five patients were recruited for this study. Pediatric patients (< 18 years) accounted for 43.6% of cases. Rasburicase was provided prophylactically to 43 patients (78.2%) and for treating TLS to 12 (21.8%). Mean ± standard deviation serum uric acid at baseline and 24 hours was 9.2 ± 1.8 mg/dL and 3.2 ± 2.1 mg/dL, respectively. There was significant reduction in the serum uric acid and creatinine (P < .001) within 24 hours of rasburicase administration. The response was maintained up to 72 hours. A single dose of rasburicase was effective in 94.5% of patients. Single low-dose rasburicase led to 95% direct cost savings compared to the recommended dose.ConclusionSingle-dose rasburicase with frequent laboratory monitoring is effective in the management of TLS and offers significant cost reductions.  相似文献   
100.
Journal of Neuro-Oncology - Resting state functional magnetic resonance imaging (rsfMRI) is an emerging tool to explore the functional connectivity of different brain regions. We aimed to assess...  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号