全文获取类型
收费全文 | 3749篇 |
免费 | 193篇 |
国内免费 | 59篇 |
专业分类
耳鼻咽喉 | 71篇 |
儿科学 | 150篇 |
妇产科学 | 152篇 |
基础医学 | 306篇 |
口腔科学 | 80篇 |
临床医学 | 318篇 |
内科学 | 1229篇 |
皮肤病学 | 32篇 |
神经病学 | 228篇 |
特种医学 | 122篇 |
外科学 | 525篇 |
综合类 | 93篇 |
一般理论 | 1篇 |
预防医学 | 160篇 |
眼科学 | 167篇 |
药学 | 218篇 |
中国医学 | 18篇 |
肿瘤学 | 131篇 |
出版年
2024年 | 5篇 |
2023年 | 30篇 |
2022年 | 61篇 |
2021年 | 117篇 |
2020年 | 54篇 |
2019年 | 79篇 |
2018年 | 95篇 |
2017年 | 76篇 |
2016年 | 84篇 |
2015年 | 133篇 |
2014年 | 152篇 |
2013年 | 199篇 |
2012年 | 302篇 |
2011年 | 302篇 |
2010年 | 173篇 |
2009年 | 155篇 |
2008年 | 280篇 |
2007年 | 319篇 |
2006年 | 270篇 |
2005年 | 262篇 |
2004年 | 189篇 |
2003年 | 168篇 |
2002年 | 137篇 |
2001年 | 51篇 |
2000年 | 48篇 |
1999年 | 39篇 |
1998年 | 18篇 |
1997年 | 28篇 |
1996年 | 12篇 |
1995年 | 15篇 |
1994年 | 9篇 |
1993年 | 8篇 |
1992年 | 13篇 |
1991年 | 18篇 |
1990年 | 13篇 |
1989年 | 12篇 |
1988年 | 15篇 |
1987年 | 11篇 |
1986年 | 4篇 |
1985年 | 10篇 |
1984年 | 6篇 |
1983年 | 6篇 |
1981年 | 3篇 |
1980年 | 4篇 |
1979年 | 4篇 |
1973年 | 2篇 |
1956年 | 1篇 |
1932年 | 1篇 |
1931年 | 1篇 |
1929年 | 1篇 |
排序方式: 共有4001条查询结果,搜索用时 15 毫秒
101.
102.
Itır Şebnem Bilici Yusuf Emes Buket Aybar Serhat Yalçın 《Journal of cranio-maxillo-facial surgery》2018,46(6):916-922
Purpose
In temporomandibular disorders (TMDs), unless splints are effective, combined therapies are performed. The aim of this study is to show the effectiveness of the local anaesthethic injections (trigger point injections) to the masticatory muscles.Materials and methods
The study was composed of TMD patients and the predictor variables were therapy combinations including stabilization splint (SS) therapy, SS+trigger point injection therapy (TPI) and arthrocentesis. The primary outcome variables were pain and jaw movements. The follow-ups were done at 1st and 3rd months. 56 patients who were treated for TMD with only SS or combined therapies were included in the study. The effects of additional TPIs were compared to SS therapy alone. Also the effect of arthrocentesis was evaluated too.Results
All groups revealed significant decreases in pain scores. Decreases in mouth openings were observed in some of the patients in the injection groups.Conclusion
The combined treatment method in which the injections were applied at shorter time intervals, was a more effective method for decreasing VAS scores in TMD patients in this study but further studies are required. 相似文献103.
104.
Prediction of subtle left ventricular systolic dysfunction in homozygous and heterozygous familial hypercholesterolemia: Genetic analyses and speckle tracking echocardiography study 下载免费PDF全文
105.
106.
Tavil Y 《International journal of cardiology》2009,135(3):398
The concurrence of acute coronary syndrome with amoxicillin/clavulanic acid intake has been defined as Kounis syndrome. There are some controversial factors which may effect this circumstance. Particularly, the condition which triggers the coronary vasospasm may mimic this syndrome. Furthermore, in the present case, an allergic study had been performed, showing hypersensitivity to penicillin and beta-lactamic agents that ruled out the role of amoxicillin administration. 相似文献
107.
Pathak S Yusuf SW Doyle TN Francis IA Hurst PA Davidson C 《The British journal of radiology》2006,79(944):e62-e63
Aortocaval fistula (ACF) and false aneurysm are a recognized complication of open abdominal aortic aneurysm (AAA) repair. Untreated they are often fatal. However, open surgical repair of this complication is associated with a high operative mortality and a significant complication rate. Endovascular management using a stent-graft to exclude the false aneurysm and fistula is a technically feasible alternative and confers many advantages over open repair by virtue of its minimally invasive nature. We report the endovascular management of this rare but serious complication of open AAA repair. 相似文献
108.
Sonia S. Anand Francois Caron John W. Eikelboom Jackie Bosch Leanne Dyal Victor Aboyans Maria Teresa Abola Kelley R.H. Branch Katalin Keltai Deepak L. Bhatt Peter Verhamme Keith A.A. Fox Nancy Cook-Bruns Vivian Lanius Stuart J. Connolly Salim Yusuf 《Journal of the American College of Cardiology》2018,71(20):2306-2315
Background
Patients with lower extremity peripheral artery disease (PAD) are at increased risk of major adverse cardiovascular events (MACE) and major adverse limb events (MALE). There is limited information on the prognosis of patients who experience MALE.Objectives
Among participants with lower extremity PAD, this study investigated: 1) if hospitalizations, MACE, amputations, and deaths are higher after the first episode of MALE compared with patients with PAD who do not experience MALE; and 2) the impact of treatment with low-dose rivaroxaban and aspirin compared with aspirin alone on the incidence of MALE, peripheral vascular interventions, and all peripheral vascular outcomes over a median follow-up of 21 months.Methods
We analyzed outcomes in 6,391 patients with lower extremity PAD who were enrolled in the COMPASS (Cardiovascular Outcomes for People Using Anticoagulation Strategies) trial. COMPASS was a randomized, double-blind placebo-controlled study of low-dose rivaroxaban and aspirin combination or rivaroxaban alone compared with aspirin alone. MALE was defined as severe limb ischemia leading to an intervention or major vascular amputation.Results
A total of 128 patients experienced an incident of MALE. After MALE, the 1-year cumulative risk of a subsequent hospitalization was 61.5%; for vascular amputations, it was 20.5%; for death, it was 8.3%; and for MACE, it was 3.7%. The MALE index event significantly increased the risk of experiencing subsequent hospitalizations (hazard ratio [HR]: 7.21; p < 0.0001), subsequent amputations (HR: 197.5; p < 0.0001), and death (HR: 3.23; p < 0.001). Compared with aspirin alone, the combination of rivaroxaban 2.5 mg twice daily and aspirin lowered the incidence of MALE by 43% (p = 0.01), total vascular amputations by 58% (p = 0.01), peripheral vascular interventions by 24% (p = 0.03), and all peripheral vascular outcomes by 24% (p = 0.02).Conclusions
Among individuals with lower extremity PAD, the development of MALE is associated with a poor prognosis, making prevention of this condition of utmost importance. The combination of rivaroxaban 2.5 mg twice daily and aspirin significantly lowered the incidence of MALE and the related complications, and this combination should be considered as an important therapy for patients with PAD. (Cardiovascular Outcomes for People Using Anticoagulation Strategies [COMPASS]; NCT01776424) 相似文献109.
Onur Tezel Umit Kaldirim Serkan Bilgic Suleyman Deniz Yusuf Emrah Eyi Selahattin Ozyurek Murat Durusu Nihal Tezel 《The American journal of emergency medicine》2014
Objectives
Dislocation of the shoulder joint is one of the most common dislocations. The reduction procedure is a painful procedure. In this study, 2 different treatment groups were compared for pain control during shoulder dislocation reduction. It was aimed to evaluate the differences between the groups in reduction, success, length of hospital stay, complications, side effects, patient-physician satisfaction, and ease of application.Methods
The study was planned to be prospective and randomized. As procedural sedation analgesia (SA), titration of ketamine 1 to 2 mg/kg was administered intravenously to group 1. Suprascapular nerve block (SNB) was applied under ultrasound guidance (USG) to group 2. Conformity to normal distribution of variables was examined with the Kolmogorov-Smirnov test. The χ2 test and Fisher test were used to evaluate differences between the groups in categorical variables and the Mann-Whitney U test, and a value of P < .05 was accepted as statistically significant.Results
The study comprised a total of 41 patients; 20 in the group 1 and 21 in the group 2. No statistically significant difference was determined between the groups in terms of age (P = .916), sex (P = .972), reduction success (P = .540), and patient-physician satisfaction (P = .198). The time spent in the emergency department (ED) by patients in the SA group was signficantly longer compared with the SNB group. No side effects were observed in the SNB group.Conclusions
Suprascapular nerve block, which can be easily applied under USG in the ED, can be evaluated as a good alternative to SA in the reduction of shoulder dislocations. 相似文献110.
Hilal Akalin Izem Olcay Sahin Seyma Aktas Paskal Busra Tan Ezgi Yalcinkaya Mikail Demir Mustafa Yakubi Busra Ozguc Caliskan Ozlem Gokce Ekinci Mehmet Ercan Tugce Yasar Kucuk Gizem Gokgoz Aslihan Kiraz Huseyin Per Mahmut Tuncay Ozgun Numan Baydilli Yusuf Ozkul Munis Dundar 《Journal of clinical laboratory analysis》2024,38(1-2):e24997