全文获取类型
收费全文 | 6612篇 |
免费 | 354篇 |
国内免费 | 122篇 |
专业分类
耳鼻咽喉 | 28篇 |
儿科学 | 131篇 |
妇产科学 | 69篇 |
基础医学 | 530篇 |
口腔科学 | 436篇 |
临床医学 | 507篇 |
内科学 | 1016篇 |
皮肤病学 | 73篇 |
神经病学 | 82篇 |
特种医学 | 208篇 |
外科学 | 2273篇 |
综合类 | 997篇 |
预防医学 | 215篇 |
眼科学 | 29篇 |
药学 | 339篇 |
3篇 | |
中国医学 | 77篇 |
肿瘤学 | 75篇 |
出版年
2024年 | 58篇 |
2023年 | 150篇 |
2022年 | 169篇 |
2021年 | 296篇 |
2020年 | 274篇 |
2019年 | 209篇 |
2018年 | 231篇 |
2017年 | 194篇 |
2016年 | 179篇 |
2015年 | 214篇 |
2014年 | 384篇 |
2013年 | 433篇 |
2012年 | 294篇 |
2011年 | 353篇 |
2010年 | 325篇 |
2009年 | 320篇 |
2008年 | 314篇 |
2007年 | 330篇 |
2006年 | 285篇 |
2005年 | 271篇 |
2004年 | 245篇 |
2003年 | 228篇 |
2002年 | 189篇 |
2001年 | 172篇 |
2000年 | 129篇 |
1999年 | 93篇 |
1998年 | 80篇 |
1997年 | 73篇 |
1996年 | 69篇 |
1995年 | 64篇 |
1994年 | 54篇 |
1993年 | 55篇 |
1992年 | 46篇 |
1991年 | 42篇 |
1990年 | 37篇 |
1989年 | 35篇 |
1988年 | 31篇 |
1987年 | 23篇 |
1986年 | 30篇 |
1985年 | 14篇 |
1984年 | 18篇 |
1983年 | 7篇 |
1982年 | 12篇 |
1981年 | 12篇 |
1980年 | 5篇 |
1979年 | 6篇 |
1978年 | 14篇 |
1977年 | 8篇 |
1976年 | 5篇 |
1975年 | 4篇 |
排序方式: 共有7088条查询结果,搜索用时 15 毫秒
21.
22.
Background
Treatment of acetabular bone loss with impaction bone grafting (IBG) at revision total hip arthroplasty is highly dependent on mechanical stability and graft compression for clinical success. Here, we describe a new technique to further compress and stabilize the acetabular graft bed with a thin, perforated titanium shell.Methods
We retrospectively analyzed 170 cases of acetabular revision arthroplasty 7 years (standard deviation 2.8) after IBG combined with a graft-compressing titanium shell implant. The patients were reviewed by clinical score and radiography. Three patients were lost to follow-up. The medical journals of the 33 deceased cases were reviewed for any reoperation. Of the 170 cases, 74 had a cavitary acetabular bone defect, 93 had combined segmental and cavitary bone defects, and 3 had a pelvic dissociation. Bone graft incorporation was assessed and correction of the hip center of rotation was calculated.Results
Five cases (3%) were reoperated for mechanical loosening. One more was assessed as loose but asymptomatic and was not planned for revision. There were 3 reoperations for recurrent dislocation, 2 for deep infection and 1 for technical error. Reoperation for any reason, as the end point of survivorship, showed a survival rate of 92% after 10 years. Hip score according to Merle, d'Aubigne, and Postel increased from 10.8 (preoperatively) to 16.4 at follow-up. The clinical and radiological results were excellent.Conclusion
IBG combined with the compressing shell results in excellent results for this challenging condition. 相似文献23.
N. Bryce Robinson MD James Tatoulis MD Mario Gaudino MD 《Journal of cardiac surgery》2020,35(9):2155-2157
With the resurgence of the radial artery in coronary artery bypass grafting, the debate on the optimal harvesting technique continues. Here, we comment on a randomized series in which the authors conclude that endoscopic harvesting techniques offer the benefit of improved cosmetic outcomes and decreased neurological complications with comparable graft-related outcomes when compared with open harvesting. We conclude that although this study is well designed and conducted, there are several areas of concern including surgical technique and statistical power. 相似文献
24.
25.
26.
27.
28.
29.
《中国整形与重建外科(英文)》2022,4(4):166-170
BackgroundChronic venous ulcers are a serious problem for both patients and physicians. The CEAP classification (clinical manifestations (C), etiologic factors (E), anatomic distribution of disease (A), and underlying pathophysiologic findings (P)) for chronic venous disorders (CVD) was developed in 1994. Published papers on CVD use all or part of the CEAP. Micropunch grafts, which are a variation of skin grafts, have been used with great success in plastic surgery for both esthetic and reconstructive purposes. This study aimed to assess the outcomes of micropunch grafting in the treatment of chronic refractory venous ulcers.MethodsPatients with chronic venous ulcers who did not respond to conservative treatment for more than 6 months were included in the study. All patients underwent ulcer coverage by micropunch skin grafts using a micrometer. The patients were discharged on the same day as the surgery. Micropunch skin grafts were manually counted per square centimeter intraoperatively and during follow-up using Dermlite Dermatoschope? II Pro HR. Patient satisfaction was assessed by using a questionnaire.ResultsTwenty patients underwent the surgery. Most of the patients were middle-aged males. The ulcers were predominantly small- and medium-sized. The mean operation time was 167.00 ?± ?86.01 ?min. After 6 months, the survival rate of the planted micrografts was 84%. Three ulcers had graft loss and two patients had an infection at the ulcer site, which was managed conservatively. The patients were followed-up for 14 months.ConclusionMicropunch grafting is a useful and convenient method for the treatment of difficult venous ulcers and can be performed on an outpatient basis. 相似文献
30.
目的:评估皮下注射低分子肝素钙对预防烧伤植皮后深静脉血栓(DVT)形成的效果。方法选取2013年1月~2014年12月本院收治的79例烧伤后需植皮的患者,其中皮下注射低分子肝素钙预DVT患者41例设为治疗组。植皮术后仅使用红外线治疗仪照射,硫酸镁热敷,活动肌肉组织等基础措施的38例为对照组。统计血浆D-二聚体(D-dimer)浓度、血小板计数、植皮成活率、创面愈合时间、感染病例数、组织器官出血病例数和DVT形成数等指标。结果治疗组术后第3、7、11、15 d的血浆D-dimer浓度均低于对照组(P<0.05);对照组的血栓形成率为10.5%,明显高于治疗组的0(P<0.05);两组术前1 d的D-dimer浓度、血小板计数,植皮成活率、创面愈合时间、感染及出血发生率差异无统计学意义(P>0.05)。结论皮下注射低分子肝素钙对预防烧伤植皮术后患者DVT形成有一定的临床意义。 相似文献