全文获取类型
收费全文 | 1368篇 |
免费 | 79篇 |
国内免费 | 7篇 |
专业分类
耳鼻咽喉 | 5篇 |
儿科学 | 54篇 |
妇产科学 | 9篇 |
基础医学 | 189篇 |
口腔科学 | 32篇 |
临床医学 | 117篇 |
内科学 | 309篇 |
皮肤病学 | 17篇 |
神经病学 | 151篇 |
特种医学 | 47篇 |
外科学 | 242篇 |
综合类 | 3篇 |
预防医学 | 51篇 |
眼科学 | 5篇 |
药学 | 57篇 |
中国医学 | 3篇 |
肿瘤学 | 163篇 |
出版年
2023年 | 26篇 |
2022年 | 23篇 |
2021年 | 116篇 |
2020年 | 53篇 |
2019年 | 52篇 |
2018年 | 61篇 |
2017年 | 61篇 |
2016年 | 61篇 |
2015年 | 58篇 |
2014年 | 58篇 |
2013年 | 79篇 |
2012年 | 99篇 |
2011年 | 83篇 |
2010年 | 59篇 |
2009年 | 36篇 |
2008年 | 57篇 |
2007年 | 53篇 |
2006年 | 53篇 |
2005年 | 53篇 |
2004年 | 45篇 |
2003年 | 39篇 |
2002年 | 40篇 |
2001年 | 15篇 |
2000年 | 14篇 |
1999年 | 22篇 |
1998年 | 8篇 |
1997年 | 7篇 |
1996年 | 4篇 |
1995年 | 12篇 |
1994年 | 8篇 |
1993年 | 9篇 |
1992年 | 11篇 |
1991年 | 17篇 |
1990年 | 10篇 |
1989年 | 6篇 |
1988年 | 8篇 |
1987年 | 8篇 |
1986年 | 7篇 |
1985年 | 4篇 |
1984年 | 5篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1978年 | 3篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1973年 | 3篇 |
1972年 | 1篇 |
排序方式: 共有1454条查询结果,搜索用时 62 毫秒
1.
2.
3.
Mortellaro C Rimondini L Farronato G Garagiola U Varcellino V Berrone M 《The Journal of craniofacial surgery》2006,17(2):373-382
A case of mandibular fracture surgically consolidated in a wrong position resulting in craniomandibular disorders is reported. The inadequate surgical alignment of the healed bony segments caused a malocclusion. This changed the original neuromuscular system such that compensatory mechanisms began to change the whole balance of the organism. The patient presented a mandibular crossbite, an asymmetry of the face, and extensive alteration of muscular, articular, and postural function. The bony malunion and malocclusion were treated using an interdisciplinary surgical-orthodontic treatment for correcting functional disorders and aesthetic deformity. Electromyography and computerized mandibular scanning were used to evaluate improvement of the muscular activity, during rest and function, and of the mandibular kinesiology. Timing of surgical treatment and adequate fixation and immobilization of fracture segments are very important to avoid complications such as infection, delayed union, nonunion, malunion, skeletal discrepancies, nerve injury, and (rarely) ankylosis. The surgical approach should be based on the general criteria of traumatologic therapy, restoring the original bone shape and the right occlusal relations as soon as possible. 相似文献
4.
G.M. Nardi A. Mattia I. Di Nardo A. Scattarella R. Di Giorgio 《Prevenzione & Assistenza Dentale》2010
Objectives
To evaluate food habits and oral care level of eleven and twelve years old students with the purpose of preventing obesity and oral diseases. The role of Dental Hygienists in the prevention of such problems was examined as well.Materials and methods
A questionnaire was distributed to a sample of 90 secondary school students (41 males and 49 females).Results
The answers point out that some improper food habits are particularly common, such as the excessive consumption of sweets and fizzy drinks, and the low consumption of fruit and vegetables.Conclusions
Since not all children have a good oral care and follow a correct diet, the role of Dental Hygienists is paramount. 相似文献5.
Farina R Pramstraller M Franceschetti G Pramstraller C Trombelli L 《Clinical oral implants research》2011,22(10):1138-1144
Aim: To compare the alveolar ridge dimensions between edentulous sites and contralateral dentate sites of maxillary posterior sextants in the same individuals. Materials and methods: Computerized tomography scans of 32 patients with one fully edentulous and one fully dentate maxillary posterior sextants were analyzed. Results: When compared with dentate sextants, edentulous sextants showed (i) a lower bone height (BH) at second premolar, first molar and second molar sites, which was associated with a more coronal position of the maxillary sinus floor at second premolar site; (ii) a more apical position of the ridge at second premolar and second molar sites; (iii) a lower bone width (BW)1 mm at first and second premolar sites, and a lower BW3 mm at all sites, (iv) a lower, although not significant, prevalence of premolar and molar sites with BH≥8 mm and BW1 mm≥6 mm. Conclusions: The edentulous sextants in the posterior maxilla showed a reduced height and width of the ridge when compared with contralateral dentate sextants. The reduced vertical dimensions observed in edentulous sextants were variably associated with ridge resorption as well as sinus pneumatization. To cite this article: Farina R, Pramstraller M, Franceschetti G, Pramstraller C, Trombelli L. Alveolar ridge dimensions in maxillary posterior sextants: a retrospective comparative study of dentate and edentulous sites using computerized tomography data.Clin. Oral Impl. Res. 22 , 2011; 1138–1144.doi: 10.1111/j.1600‐0501.2010.02087.x 相似文献
6.
7.
Antonio Marmotti Laura de Girolamo Davide Edoardo Bonasia Matteo Bruzzone Silvia Mattia Roberto Rossi Angela Montaruli Federico Dettoni Filippo Castoldi Giuseppe Peretti 《International orthopaedics》2014,38(9):1787-1801
Stem cells have huge applications in the field of tissue engineering and regenerative medicine. Their use is currently not restricted to the life-threatening diseases but also extended to disorders involving the structural tissues, which may not jeopardize the patients’ life, but certainly influence their quality of life. In fact, a particularly popular line of research is represented by the regeneration of bone and cartilage tissues to treat various orthopaedic disorders. Most of these pioneering research lines that aim to create new treatments for diseases that currently have limited therapies are still in the bench of the researchers. However, in recent years, several clinical trials have been started with satisfactory and encouraging results. This article aims to review the concept of stem cells and their characterization in terms of site of residence, differentiation potential and therapeutic prospective. In fact, while only the bone marrow was initially considered as a “reservoir” of this cell population, later, adipose tissue and muscle tissue have provided a considerable amount of cells available for multiple differentiation. In reality, recently, the so-called “stem cell niche” was identified as the perivascular space, recognizing these cells as almost ubiquitous. In the field of bone and joint diseases, their potential to differentiate into multiple cell lines makes their application ideally immediate through three main modalities: (1) cells selected by withdrawal from bone marrow, subsequent culture in the laboratory, and ultimately transplant at the site of injury; (2) bone marrow aspirate, concentrated and directly implanted into the injury site; (3) systemic mobilization of stem cells and other bone marrow precursors by the use of growth factors. The use of this cell population in joint and bone disease will be addressed and discussed, analysing both the clinical outcomes but also the basic research background, which has justified their use for the treatment of bone, cartilage and meniscus tissues. 相似文献
8.
9.
10.
Gaetano?CarusoEmail authorView authors OrcID profile Lorenzo?Milani Tedi?Marko Vincenzo?Lorusso Mattia?Andreotti Leo?Massari 《European journal of orthopaedic surgery & traumatology : orthopedie traumatologie》2018,28(5):931-938