全文获取类型
收费全文 | 582篇 |
免费 | 20篇 |
国内免费 | 4篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 6篇 |
妇产科学 | 2篇 |
基础医学 | 52篇 |
口腔科学 | 12篇 |
临床医学 | 40篇 |
内科学 | 133篇 |
皮肤病学 | 4篇 |
神经病学 | 44篇 |
特种医学 | 12篇 |
外科学 | 80篇 |
综合类 | 4篇 |
预防医学 | 121篇 |
眼科学 | 17篇 |
药学 | 46篇 |
肿瘤学 | 32篇 |
出版年
2023年 | 3篇 |
2022年 | 13篇 |
2021年 | 28篇 |
2020年 | 15篇 |
2019年 | 16篇 |
2018年 | 27篇 |
2017年 | 12篇 |
2016年 | 10篇 |
2015年 | 16篇 |
2014年 | 21篇 |
2013年 | 39篇 |
2012年 | 47篇 |
2011年 | 77篇 |
2010年 | 21篇 |
2009年 | 19篇 |
2008年 | 21篇 |
2007年 | 26篇 |
2006年 | 39篇 |
2005年 | 41篇 |
2004年 | 32篇 |
2003年 | 27篇 |
2002年 | 27篇 |
2001年 | 9篇 |
2000年 | 7篇 |
1999年 | 8篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1986年 | 2篇 |
排序方式: 共有606条查询结果,搜索用时 15 毫秒
1.
Abdelfettah Abid Raouf Denguir Karim Kaouel Mourad Hakim Imed Khanfir Taoufik Kalfat Adel Khayati 《La Tunisie médicale》2003,81(1):67-71
The aim of this study is to raise up the effect of surgical thrombectomy among other alternative therapies. This retrospective study reports 6 patients (mean age 63 years) admitted with phlegmasia cerulea dolens. All patients underwent surgical venous thrombectomy associated with infracava filter insertion in 2 cases. One patient died in the early postoperative course. In all other cases we noticed good early and late outcome both on clinical examination and duplex scanning assessment. In conclusion, surgical venous thrombectomy can be considered as a good and efficient procedure in the presence of phlegmasia cerulea dolens in order to relieve ischemia and to prevent whenever possible severe chronic venous disorders. However, fibrinolytic therapy might achieve as good results as surgery. Thus, the latter is to be reserved to very severe veinous ischemia with limb loss threatening where fibrinolytic therapy fails or is contre-indicated. 相似文献
2.
3.
Modulation of calcium homeostasis as a mechanism for altering smooth muscle responsiveness in asthma
Airway hyperresponsiveness remains a defining characteristic of asthma. Traditional views assert that airway smooth muscle is an important structural effector cell in the bronchi that modulates bronchomotor tone induced by contractile agonists. New evidence, however, suggests that abnormalities in airway smooth muscle functions, induced by variety of extracellular stimuli, may play an important role in the development of airway hyperresponsiveness. Studies using isolated bronchial preparations or cultured cells show that inflammatory mediators and cytokines may alter calcium homeostasis in airway smooth muscle and render the cells nonspecifically hyperreactive to agonists. 相似文献
4.
McGowan S Wynaden D Harding N Yassine A Parker J 《The Australian and New Zealand journal of mental health nursing》1999,8(3):104-108
Interacting with potentially aggressive patients is a common occurrence for nurses working in psychiatric intensive care units. Although the literature highlights the need to educate staff in the prevention and management of aggression, often little, or no, training is provided by employers. This article describes a benchmarking exercise conducted in psychiatric intensive care units at two Western Australian hospitals to assess staff confidence in coping with patient aggression. Results demonstrated that staff in the hospital where regular training was undertaken were significantly more confident in dealing with aggression. Following the completion of a safe physical restraint module at the other hospital staff reported a significant increase in their level of confidence that either matched or bettered the results of their benchmark colleagues. 相似文献
5.
Christiane Al‐Haddad Ziad Bashour Lina Farah Layal Bayram Zeina Merabe Riad Ma'luf Ramzi Alameddine Toufic Eid Fadi Geara Matthew Wilson Rachel Brennan Sima Jeha Khaled Ghanem Rasha Al Yousef Roula Farah Peter Noun Nabil Yassine Adlette Inati Samar Muwakkit Miguel Abboud Nidale Tarek Dima Hamideh Raya Saab 《Pediatric blood & cancer》2019,66(11)
Retinoblastoma is an ocular tumor that occurs in young children, in either heritable or sporadic manner. The relative rarity of retinoblastoma, and the need for expensive equipment, anesthesia, and pediatric ophthalmologic expertise, are barriers for effective treatment in developing countries. Also, with an average age‐adjusted incidence of two to five cases per million children, patient number limits development of local expertise in countries with small populations. Lebanon is a small country with a population of approximately 4.5 million. In 2012, a comprehensive retinoblastoma program was formalized at the Children's Cancer Institute (CCI) at the American University of Beirut Medical Center, and resources were allocated for efficient interdisciplinary coordination to attract patients from neighboring countries such as Syria and Iraq, where such specialized therapy is also lacking. Through this program, care was coordinated across hospitals and borders such that patients would receive scheduled chemotherapy at their institution, and monthly retinal examinations and focal laser therapy at the CCI in Lebanon. Our results show the feasibility of successful collaboration across borders, with excellent patient and physician adherence to treatment plans. This was accompanied by an increase in patient referrals, which enables continued expertise development. However, the majority of patients presented with advanced intraocular disease, necessitating enucleation in 90% of eyes in unilateral cases, and more than 50% of eyes in bilateral cases. Future efforts need to focus on expanding the program that reaches to additional hospitals in both countries, and promoting early diagnosis, for further improvement of globe salvage rates. 相似文献
6.
Akasbi Nessrine Abourazzak Fatima Zahra Harzy Taoufik 《Jornal brasileiro de pneumologia》2014,40(2):175-182
Sarcoidosis is a multisystem inflammatory disorder of unknown cause. It most commonly
affects the pulmonary system but can also affect the musculoskeletal system, albeit
less frequently. In patients with sarcoidosis, rheumatic involvement is polymorphic.
It can be the presenting symptom of the disease or can appear during its progression.
Articular involvement is dominated by nonspecific arthralgia, polyarthritis, and
Löfgren''s syndrome, which is defined as the presence of lung adenopathy, arthralgia
(or arthritis), and erythema nodosum. Skeletal manifestations, especially dactylitis,
appear mainly as complications of chronic, multiorgan sarcoidosis. Muscle involvement
in sarcoidosis is rare and usually asymptomatic. The diagnosis of rheumatic
sarcoidosis is based on X-ray findings and magnetic resonance imaging findings,
although the definitive diagnosis is made by anatomopathological study of biopsy
samples. Musculoskeletal involvement in sarcoidosis is generally relieved with
nonsteroidal anti-inflammatory drugs or corticosteroids. In corticosteroid-resistant
or -dependent forms of the disease, immunosuppressive therapy, such as treatment with
methotrexate or anti-TNF-α, is employed. The aim of this review was to present an
overview of the various types of osteoarticular and muscle involvement in
sarcoidosis, focusing on their diagnosis and management. 相似文献
7.
Vaidehi Garg Jayabalan Nirmal Yassine Riadi Prashant Kesharwani Kanchan Kohli Gaurav Kumar Jain 《Journal of pharmaceutical sciences》2021,110(2):871-875
This work was aimed to improve the efficacy of tacrolimus in the treatment of endotoxin-induced uveitis (EIU) using propylene glycol modified lipid vesicles termed as proglycosome nano-vesicles (PNVs). PNVs were prepared by modified film hydration method. Experimental uveitis in rabbit eye was induced by an intravitreal injection of 20 μL of the endotoxin solution containing 100 ng of lipopolysaccharide endotoxin. In vivo efficacy of PNVs was determined by studying clinical symptoms of uveitis using slit lamp examination and by quantitatively measuring levels of tumor necrosis factor-alpha, interleukin-6, leukocytes and total proteins in aqueous humor, 24 h after intravitreal injection of endotoxin. Comparison was made with healthy, untreated and tacrolimus solution treated eyes. PNVs developed were nano-sized, deformable and showed sustained release of tacrolimus over period of 12 h. In vivo results indicated statistically significant difference between the effects of PNVs in the treatment of EIU compared to tacrolimus. PNV treatment not only subsides clinical symptoms of uveitis but also prevented breakdown of blood aqueous barrier. Tacrolimus loaded PNVs are potential new topical treatment for uveitis. 相似文献
8.
9.
10.
Maries Joseph Taoufik Zoubeidi Sherina M. Al-Dhaheri Aysha Ahmed Al-Dhaheri Afra A. Al-Dhaheri Fatima M. Al-Kaabi 《The Journal of asthma》2013,50(2):175-178
Consanguinity is known to increase the burden of genetic disorders among offspring. However, the effect of consanguinity on a complex disorder like childhood asthma has not been studied previously. Therefore, we explored this relationship by studying the asthma prevalence in children between 6 and 14 years of age among the local Arab families of the United Arab Emirates (UAE) where consanguinity is known to be highly prevalent. A total of 1136 children from 295 families met our inclusion criteria. The prevalence of childhood asthma was higher among children in consanguineous families (43.3%) compared to non-consanguineous (22.6%, p < 0.001). There was a significant correlation between the degree of consanguinity and the number of asthmatic children per family (p = 0.0002). Girls from consanguineous families had proportionately more asthma (42.9%, p < 0.001) compared to boys (23.1%, p = 0.539).Paternal asthma in consanguineous families increased asthma risk for both boys and girls (p = 0.021 for boys, p < 0.001 for girls), while maternal asthma had no significant impact on asthma in offspring. Prevalence of childhood asthma was significantly higher in consanguineous families. The significant asthma predictors for girls from the consanguineous families were the degree of consanguinity and paternal asthma. The only predictor for boys was paternal asthma. These interesting observations merit further studies on both larger samples and in other consanguineous communities for confirmation. 相似文献