全文获取类型
收费全文 | 4519篇 |
免费 | 185篇 |
国内免费 | 60篇 |
专业分类
耳鼻咽喉 | 101篇 |
儿科学 | 60篇 |
妇产科学 | 29篇 |
基础医学 | 473篇 |
口腔科学 | 411篇 |
临床医学 | 345篇 |
内科学 | 90篇 |
皮肤病学 | 74篇 |
神经病学 | 45篇 |
特种医学 | 518篇 |
外科学 | 1061篇 |
综合类 | 424篇 |
预防医学 | 119篇 |
眼科学 | 31篇 |
药学 | 351篇 |
1篇 | |
中国医学 | 237篇 |
肿瘤学 | 394篇 |
出版年
2024年 | 13篇 |
2023年 | 72篇 |
2022年 | 138篇 |
2021年 | 163篇 |
2020年 | 143篇 |
2019年 | 117篇 |
2018年 | 150篇 |
2017年 | 129篇 |
2016年 | 149篇 |
2015年 | 187篇 |
2014年 | 280篇 |
2013年 | 293篇 |
2012年 | 260篇 |
2011年 | 309篇 |
2010年 | 239篇 |
2009年 | 217篇 |
2008年 | 227篇 |
2007年 | 214篇 |
2006年 | 183篇 |
2005年 | 176篇 |
2004年 | 139篇 |
2003年 | 112篇 |
2002年 | 87篇 |
2001年 | 104篇 |
2000年 | 74篇 |
1999年 | 105篇 |
1998年 | 57篇 |
1997年 | 52篇 |
1996年 | 52篇 |
1995年 | 42篇 |
1994年 | 37篇 |
1993年 | 33篇 |
1992年 | 27篇 |
1991年 | 17篇 |
1990年 | 15篇 |
1989年 | 15篇 |
1988年 | 18篇 |
1987年 | 13篇 |
1986年 | 14篇 |
1985年 | 14篇 |
1984年 | 13篇 |
1983年 | 6篇 |
1982年 | 19篇 |
1981年 | 13篇 |
1980年 | 6篇 |
1979年 | 8篇 |
1978年 | 7篇 |
1977年 | 2篇 |
1976年 | 3篇 |
1971年 | 1篇 |
排序方式: 共有4764条查询结果,搜索用时 8 毫秒
11.
Fibrous metaphyseal defects — determination of their origin and natural history using a radiomorphological study 总被引:5,自引:0,他引:5
The radiomorphological appearance of fibrous metaphyseal defects (FMDs) is demonstrated by long-term follow-up studies. A characteristic radiomorphological course rather than a typical single appearance can be established. These findings correlate well with the duration of these tumor-like lesions; therefore, the radiological findings allow conclusions to be made about the age of a fibrous metaphyseal defect. In addition, the characteristic locations of FMDs will be explained in respect of their origins at insertions of tendons and ligaments. 相似文献
12.
Iñaki Cercadillo-Ibarguren Leonardo Berini-Aytés Vicente Marco-Molina Cosme Gay-Escoda 《Journal of oral pathology & medicine》2006,35(8):513-516
The case describes a 38-year-old woman presenting a multilocular radiolucency affecting the entire right half of the lower jaw, with an unerupted third molar displaced to the region of the coronoid process. The histological study showed the presence of fibroblasts, focally with pleomorphic nuclei, dense collagen and an odontogenic epithelium with dystrophic calcifications. A cyst with an important inflammatory infiltrate was, moreover, observed. 相似文献
13.
Fluid-fluid levels in cavernous hemangioma of soft tissue 总被引:3,自引:0,他引:3
Shigeru Ehara M.D. Miyuki Sone Yoshiharu Tamakawa Jun Nishida Masataka Abe Junichi Hachiya 《Skeletal radiology》1994,23(2):107-109
Five cases of cavernous hemangioma with fluid-fluid levels on magnetic resonance imaging and/or computed tomography are reported. The signal characteristics were those of blood and histological analysis of the fluid-fluid levels showed that they were blood-filled cavities in the tumor. Although this finding itself is not specific, it may help in confirming the diagnosis of cavernous hemangioma. 相似文献
14.
A. Weber W. F. P. van Heerden A. J. Ligthelm E. J. Raubenheimer 《Journal of oral pathology & medicine》1992,21(2):82-84
Since peripheral odontogenic fibroma (POF) is characteristically described as a solitary lesion and no diffuse POF had been reported in the literature, our cases should be considered as extremely unusual. Three diffuse cases of POF are described of which one case was seen in association with ocular and skin lesions. The question arises whether POF should be considered as a true odontogenic tumor rather than a diffuse hamartomatous lesion caused by uncontrolled induction of the gingiva. It is also possible that such lesions could be part of a yet undescribed syndrome. 相似文献
15.
Sergi Sastre Guillem Bori Sebastian Garcia Andreu Combalia 《European journal of orthopaedic surgery & traumatology : orthopedie traumatologie》2005,15(1):63-65
A rare case of an infected chronic hematoma in a patient with immunodeficiency syndrome mimicking a soft tissue neoplasm is presented. There are few reported cases of hematogenous infection of chronic hematomas, which be difficult to differentiate from soft tissue neoplasms. 相似文献
16.
上肢屈曲性旋转撕脱离断伤的形成及功能挽救 总被引:1,自引:0,他引:1
目的探讨上肢轴向屈曲性旋转撕脱离断伤的形成以及侧胸和背部组织在功能挽救中的应用方式和疗效。方法2000年7月~2003年9月共收治6例上肢轴向屈曲性旋转撕脱离断伤患者,所有病例行一期再植或寄养再植。术后肩关节外展90°、肘关节屈曲100°位石膏或支具固定,6周后去除固定行功能锻炼。结果6例患者再植均顺利成活,随访3个月~2年,术后肩关节外展50°~90°,前屈50°~70°,后伸20°~30°,内收20°~40°;肘关节屈曲100°~140°,伸-20°~0°;重建术后3个月时屈肘肌力达Ⅳ~Ⅴ级。结论充分利用侧胸和背部组织特点进行分期、分层手术,解决创面覆盖和功能重建互相干扰的矛盾,是挽救严重轴向屈曲性旋转撕脱离断伤上肢,恢复其外形和功能的可靠方法。 相似文献
17.
18.
应用胫前肌瓣修复胫骨骨髓炎合并软组织缺损 总被引:1,自引:0,他引:1
自1999年1月-2005年3月,应用胫前肌瓣修复胫骨骨髓炎合并软组织缺损13例,同时辅以中药治疗,获得较满意的效果,现报告如下。1临床资料本组13例,男9例,女4例;年龄18~67岁,平均32岁。致伤原因:车祸伤6例,挤压伤4例,烧伤1例,坠落伤2例。胫骨上1/3段1例,中1/3段2例,下1/3段5例,中下2 相似文献
19.
Plantar defects are a challenge for the plastic surgeon; from 1984–1995 59 operations were performed in 57 patients. The radial forearm flap and the latissimus dorsi (LD) flaps were mainly used depending on the amount of tissue loss. Local flaps such as dorsalis pedis and instep flaps were used for smaller defects. The radial forearm flap is ideal in terms of thickness and stability for the sole but limited in its size. The LD flap is a safe procedure especially for severe injuries and osteitis, but has the disadvantage of being bulky and debulking procedures are frequently performed. For nerve reconstruction deep sensibility seems to be sufficient in order to obtain stable postoperative results. In this report the different operative methods are evaluated. Since 1991, the patients were monitored with static and dynamic foot pressure measurements and gait analysis to assess the postoperative result and prevent pressure ulcers, scar irritation and hyperkeratosis. Preoperative investigations may contribute to an optimal schedule for planning and stabilization of the operative regimen. 相似文献
20.
隐动脉筋膜蒂的交腿皮瓣修复小腿严重软组织缺损 总被引:7,自引:2,他引:5
目的探讨一种小腿严重软组织缺损的修复方法。方法以健侧隐动脉为蒂的顺行或逆行交腿皮瓣修复患侧小腿软组织缺损。结果本组8例均有效地覆盖受区创面,随访三个月,皮瓣全部成活。结论该皮瓣不牺牲小腿的重要血管,质地与受区相似,方法简单易行,血运可靠,血管蒂长,是修复小腿严重软组织缺损的较好方法。 相似文献