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   2750篇
  免费   184篇
  国内免费   9篇
耳鼻咽喉   89篇
儿科学   40篇
妇产科学   29篇
基础医学   472篇
口腔科学   40篇
临床医学   273篇
内科学   539篇
皮肤病学   49篇
神经病学   345篇
特种医学   152篇
外科学   383篇
综合类   17篇
预防医学   93篇
眼科学   38篇
药学   180篇
肿瘤学   204篇
  2023年   22篇
  2022年   18篇
  2021年   44篇
  2020年   48篇
  2019年   49篇
  2018年   74篇
  2017年   52篇
  2016年   97篇
  2015年   83篇
  2014年   91篇
  2013年   121篇
  2012年   222篇
  2011年   237篇
  2010年   162篇
  2009年   127篇
  2008年   208篇
  2007年   229篇
  2006年   194篇
  2005年   191篇
  2004年   174篇
  2003年   154篇
  2002年   122篇
  2001年   30篇
  2000年   19篇
  1999年   25篇
  1998年   16篇
  1997年   18篇
  1996年   10篇
  1995年   7篇
  1994年   2篇
  1993年   12篇
  1992年   7篇
  1991年   4篇
  1989年   9篇
  1988年   4篇
  1987年   3篇
  1986年   5篇
  1985年   2篇
  1984年   2篇
  1983年   3篇
  1982年   3篇
  1981年   5篇
  1980年   2篇
  1979年   3篇
  1978年   14篇
  1977年   5篇
  1976年   4篇
  1974年   5篇
  1961年   3篇
  1943年   1篇
排序方式: 共有2943条查询结果,搜索用时 109 毫秒
1.
The prospective, multicenter, noninterventional TACTIC study assessed effectiveness and safety of trifluridine/tipiracil (FTD/TPI) in patients with metastatic colorectal cancer (mCRC) in a real-world setting in Germany, thus evaluating the external validity of the findings from the pivotal RECOURSE trial. Primary endpoint was overall survival (OS). Secondary objectives included progression-free survival (PFS), safety, and quality of life (QoL). Subgroups comprised patients with good (<3 metastatic sites at inclusion, ≥18 months from diagnosis of first metastasis to inclusion) or poor (remaining patients) prognostic characteristics (GPC/PPC). GPC without liver metastases was considered best prognostic characteristics (BPC). In total, 307 eligible patients (pretreated or not suitable for other available therapies) were treated with FTD/TPI. Overall, median [95%-CI] OS was 7.4 months [6.4-8.6], median PFS was 2.9 months [2.8-3.3]. In BPC (n = 65) and GPC (n = 176) compared to PPC (n = 124) subgroup, median OS (13.3 [9.1-17.6] vs 8.9 [7.6-9.8] vs 5.1 [4.4-7.0] months) and median PFS (4.0 [3.3-5.3] vs 3.4 [3.0-3.7] vs 2.6 [2.4-2.8] months) were longer. Patient-reported QoL, assessed by validated questionnaires (EQ-5D-5L, PRO-CTCAE), was stable throughout FTD/TPI treatment. Predominant FTD/TPI-related adverse events of grades 3 or 4 were neutropenia (13.0%), leukopenia (7.5%), and anemia (5.2%). Altogether, palliative FTD/TPI therapy in patients with pretreated mCRC was associated with prolonged survival, delayed progression, maintained health-related QoL, and manageable toxicity. Low metastatic burden and indolent disease were favorable prognostic factors for survival. TACTIC confirms the effectiveness and safety of FTD/TPI, highlighting its value in routine clinical practice.  相似文献   
2.
Notfall + Rettungsmedizin -  相似文献   
3.
The presented case reports on successful treatment with everolimus in a neonate with left ventricular giant rhabdomyoma. The authors used a different dosage regime compared to literature and documented rapid tumor regression by 3D echocardiography.  相似文献   
4.

Background

We report the first-in-concept human trial of the safety, tolerability and immunogenicity when a novel TLR 7/8/RIG I agonist RNA-based adjuvant, CV8102, was administered alone or mixed with fractional doses of a licensed rabies vaccine (Rabipur®) as model antigen.

Methods

The primary objective was to assess the safety and reactogenicity of various dose levels of CV8102 alone or mixed with Rabipur® in healthy 18–40 year-old male volunteers. A secondary objective was to assess the immune-enhancing potential of bedside-mixes of CV8102 with fractional doses of Rabipur® by measuring induction of rabies virus neutralising titres (VNTs).

Results

Fifty-six volunteers received 50–100?μg CV8102 alone (n?=?11), bedside-mixed CV8102 and Rabipur® (n?=?20), or Rabipur® alone (n?=?25; control). When given alone or mixed with Rabipur® CV8102 caused mostly Grade 1 or 2 local or systemic reactogenicity, but no related SAEs. As 100?µg CV8102 was associated with marked CRP increases further dose escalation was stopped. Combining 25–50?µg of CV8102 with fractional doses of Rabipur® significantly improved the kinetics of VNT responses; 50?µg CV8102 also improved the magnitude of VNT responses to 1/10 Rabipur® but caused severe but self-limiting influenza-like symptoms in 2 of 14 subjects.

Conclusions

Doses of 25 and 50?µg CV8102 appeared safe and with an acceptable reactogenicity profile while significantly enhancing the immunogenicity of fractional doses of rabies vaccine.EudraCT No. 2013-004514-18.  相似文献   
5.
We describe a Fontan patient with severe heart failure who was successfully treated with biventricular cardiac resynchronization therapy (CRT). Our case shows that strain imaging might play a crucial role in guiding placement of pacing leads and in characterizing the electromechanical substrate associated with a favorable CRT response. Furthermore, we demonstrate for the first time that ventriculo‐ventricular interdependency seems an important mechanical concept, which can be utilized to augment cardiac performance in failing Fontan patients with a functional hypoplastic ventricle.  相似文献   
6.
In obstructive sleep apnea, patients’ sleep is fragmented leading to excessive daytime sleepiness and co‐morbidities like arterial hypertension. However, traditional metrics are not always directly correlated with daytime sleepiness, and the association between traditional sleep quality metrics like sleep duration and arterial hypertension is still ambiguous. In a development cohort, we analysed hypnograms from mild (n = 209), moderate (n = 222) and severe (n = 272) obstructive sleep apnea patients as well as healthy controls (n = 105) from the European Sleep Apnea Database. We assessed sleep by the analysis of two‐step transitions depending on obstructive sleep apnea severity and anthropometric factors. Two‐step transition patterns were examined for an association to arterial hypertension or daytime sleepiness. We also tested cumulative distributions of wake as well as sleep‐states for power‐laws (exponent α) and exponential distributions (decay time τ) in dependency on obstructive sleep apnea severity and potential confounders. Independent of obstructive sleep apnea severity and potential confounders, wake‐state durations followed a power‐law distribution, while sleep‐state durations were characterized by an exponential distribution. Sleep‐stage transitions are influenced by obstructive sleep apnea severity, age and gender. N2 → N3 → wake transitions were associated with high diastolic blood pressure. We observed higher frequencies of alternating (symmetric) patterns (e.g. N2 → N1 → N2, N2 → wake → N2) in sleepy patients both in the development cohort and in a validation cohort (n = 425). In conclusion, effects of obstructive sleep apnea severity and potential confounders on sleep architecture are small, but transition patterns still link sleep fragmentation directly to obstructive sleep apnea‐related clinical outcomes like arterial hypertension and daytime sleepiness.  相似文献   
7.
8.
9.
Clinical Rheumatology - Multimodal rheumatologic complex treatment (MRCT) is a specific concept of German inpatient care focusing on physical therapy for patients with rheumatic diseases suffering...  相似文献   
10.
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