全文获取类型
收费全文 | 7946篇 |
免费 | 322篇 |
国内免费 | 150篇 |
专业分类
耳鼻咽喉 | 24篇 |
儿科学 | 168篇 |
妇产科学 | 14篇 |
基础医学 | 651篇 |
口腔科学 | 192篇 |
临床医学 | 748篇 |
内科学 | 347篇 |
皮肤病学 | 49篇 |
神经病学 | 181篇 |
特种医学 | 666篇 |
外科学 | 3176篇 |
综合类 | 985篇 |
预防医学 | 272篇 |
眼科学 | 150篇 |
药学 | 344篇 |
8篇 | |
中国医学 | 302篇 |
肿瘤学 | 141篇 |
出版年
2024年 | 23篇 |
2023年 | 145篇 |
2022年 | 351篇 |
2021年 | 422篇 |
2020年 | 368篇 |
2019年 | 359篇 |
2018年 | 298篇 |
2017年 | 258篇 |
2016年 | 291篇 |
2015年 | 261篇 |
2014年 | 551篇 |
2013年 | 572篇 |
2012年 | 450篇 |
2011年 | 482篇 |
2010年 | 389篇 |
2009年 | 388篇 |
2008年 | 355篇 |
2007年 | 316篇 |
2006年 | 299篇 |
2005年 | 266篇 |
2004年 | 243篇 |
2003年 | 188篇 |
2002年 | 132篇 |
2001年 | 138篇 |
2000年 | 109篇 |
1999年 | 110篇 |
1998年 | 89篇 |
1997年 | 82篇 |
1996年 | 47篇 |
1995年 | 54篇 |
1994年 | 41篇 |
1993年 | 40篇 |
1992年 | 36篇 |
1991年 | 16篇 |
1990年 | 20篇 |
1989年 | 22篇 |
1988年 | 24篇 |
1987年 | 27篇 |
1986年 | 9篇 |
1985年 | 23篇 |
1984年 | 21篇 |
1983年 | 12篇 |
1982年 | 11篇 |
1981年 | 11篇 |
1980年 | 9篇 |
1979年 | 14篇 |
1978年 | 15篇 |
1977年 | 12篇 |
1976年 | 8篇 |
1975年 | 6篇 |
排序方式: 共有8418条查询结果,搜索用时 15 毫秒
31.
目的:研究C型骨盆骨折合并髋关节中心性脱位的临床疗效。方法:13例患者中男8例,女5例;年龄23~65岁,平均36.5岁。骨盆骨折分型:C1型8例,C2型3例,C3型2例。髋臼“T”形骨折2例,粉碎性骨折9例,双柱骨折2例。均采用手术治疗,术前术后均采用股骨髁上牵引,术中采用髂腹股沟入路,必要时附加患髋后外侧切口,术中采用重建钢板固定。结果:本组随访时间6~28个月,平均13.4个月。髋臼骨折复位后残存移位:0~1mm9例,2~3mm2例,4~5mm2例,无>5mm者。髂骨骨折复位后各向残存移位:0~1mm9例,2~5mm3例,>5mm1例。3例原发性坐骨神经损伤的患者,术后3个月内其感觉、运动功能全部获得恢复。1例继发性坐骨神经损伤,术后6个月恢复。异位骨化2例,股骨头坏死、髋臼及股骨头软骨坏死、髋关节创伤性关节炎5例,患者关节疼痛、活动受限,影响功能。疗效综合评定:优8例,良1例,可2例,差2例。结论:C型骨盆骨折合并髋关节中心性脱位通过手术治疗,能够最大程度恢复其解剖结构,术后关节功能恢复较好。 相似文献
32.
我院自 1993年 5月 - 2 0 0 1年 5月采用闭合复位或切开复位克氏针内固定治疗跖跗关节骨折脱位2 1例 ,取得满意疗效 ,现报告如下。1 临床资料 本组 2 1例 ;男 14例 ,女 7例 ;左侧 12例 ,右侧 8例 ,双侧 1例 ;年龄 2 1~ 6 8岁 ,平均 4 0 5岁 ;闭合性骨折脱位 16例 ,开放性骨折脱位 5例 ;按照Kuss分类法 :同向性脱位 15例 ,分离性脱位 6例 ;伤因 :车祸伤 12例 ,高处坠落伤 5例 ,重物压伤 3例 ,扭伤 1例。同时伴肢体骨折 6例 ,胸腹伤 3例。2 治疗方法本组 16例闭合性损伤均采用闭合复位克氏针内固定。一般在硬麻下进行 ,取平卧位 ,膝关… 相似文献
33.
螺旋CT多功能重建在骨关节外伤中的应用 总被引:2,自引:0,他引:2
目的 探讨螺旋cT功能重建在骨与关节外伤中的应用,提高重建技术的使用能力和诊断水平。方法 对使用双层螺旋CT,SSD,MPR,MIP等多种方式重建检查的49例复杂的骨与关节外伤病例进行回顾性分析。结果 49例骨关节外伤重建成像,其中,颅底3例,颌面部7例,颈、胸、腰、骶椎共17例,肩胛骨3例,髋关节8例,膝关节11例。SSD在显示碎骨片明显移位的空间关系方面较MIP,MPR为佳,它可以直观地、立体地、清晰地、多角度显示骨关节损伤,而MIP在显示骨折细节方面较优,尤其在外伤中颅窝观察有关神经孔方面。结论 螺旋CT的SSD,MPR和MIP技术的综合应用,对复杂的骨折、关节损伤的显示效果良好,具有较高的临床应用价值。 相似文献
34.
创伤性睾丸脱位5例报告 总被引:1,自引:0,他引:1
目的 探讨创伤性睾丸脱位的诊断和治疗。方法 对所收治的5例患的诊治情况进行分析研究,并结合复习有关献。结果 1例手法复位成功,4例行手术复位.1例发生睾丸萎缩后切除患睾。结论 创伤性睾丸脱位临床少见,漏误诊率较高。对骨盆部、会阴部、阴囊部外伤患应警惕本病;详细检查阴囊及睾丸.确诊后尽早行手法或手术复位固定.定期随访。 相似文献
35.
36.
Eichi Itadera Yoshimasa Miyake Yoichi Nakatsuka Hirofumi Akazawa Shigeru Mitani Kiyoshi Aoki 《Journal of orthopaedic science》1996,1(4):252-258
We report satisfactory results with a new operative treatment, conducted via an extensive anterolateral approach, involving
360 degree circumferential capsulotomy, for residual subluxation in congenital dislocation of the hip (CDH). Long-term radiographic
results of this procedure (group A) were compared retrospectively with the results of partial capsulotomy (group B), which
preserved the posteroinferior joint capsule. The mean center edge angle in group A (22.5°) was greater than that in group
B (16.0°). Satisfactory results were achieved in 11 of 15 hips (73%) (Severin class I or II) in group A, and in 5 of 12 hips
(42%) in group B. These results suggest that whole circumferential capsulotomy can remove obstacles to complete reduction,
and that acetabular development can be expected in hips reduced by the procedure, without the performance of innominate osteotomy.
We believe that our technique is a useful alternative for the treatment of residual subluxation in CDH. 相似文献
37.
In the attempt to gain a broader understanding of the causal relationships behind work-related symptoms of pain in the human
shoulder, monitoring of arm position is crucial. Different methods have been used with varying accuracy. A video-based stereometry
system, using infra-red light and reflecting markers for motion analysis, has been introduced for measurements in the fields
of ergonomics, biomechanics and sports medicine. The purpose of this study is to investigate the sources of error in using
this system for posture registration of the upper limb. Measurements are performed on a calibration fixture, on a mechanical
model of the upper limb and on a subject with an exoskeleton. Particular, attention is given to inconsistencies and relative
errors due to the finite geometrical precision with which the markers are positioned in the calibration fixture and on the
studied objects, the limited capability to align the objects relative to the coordinate system of the calibration fixture
and the errors connected to angular measurements using protractors etc. It is concluded that the system makes a valuable addition
to existing instruments for non-contact posture measurement, and produces position data with an adequate accuracy in normal
handling. 相似文献
38.
Posterior dislocations of the sternoclavicular joint are uncommon, but are potentially quite serious. Radiologic diagnosis and management are frequently difficult. The specialized projections available are not widely known, and the role of plain films is poorly understood. The incidence, pathomechanics, and clinical manifestations of such dislocations are presented and the radiologic diagnosis is discussed. 相似文献
39.
James N. Gladstone MD Kevin E. Wilk PT James R. Andrews MD 《Operative Techniques in Sports Medicine》1997,5(2):78-87
Nonoperative treatment is generally the choice for Type I and II acromioclavicular (AC) joint injuries. The situation issomewhat more controversial when Type III AC dislocations are considered, particularly with respect to athletes and heavy laborers. A number of recent studies have supported conservative treatment in these groups. There is general consensus as to the need for surgical intervention for Type IV, V, and VI AC injuries. Integral to any form of management, nonoperative or operative, is a rehabilitation program that addresses range of motion, strength, and neuromuscular control. We describe our program, which is divided into four phases: (1) Pain control and immediate protected range of motion and isometric exercises; (2) strengthening exercises using isotonic contractions and proprioceptive neuromuscular facilitation (PNF) exercises; (3) Unrestricted functional participation with the goal of increasing strength, power, endurance, and neuromuscular control; and (4) return to activity with sport specific functional drills. An athlete is ready to return to competitive sports once the following criteria are met: full range of motion (ROM), no pain or tenderness, satisfactory clinical exam, and demonstration of adequate strength on isokinetic testing. The unique considerations in a throwing athlete with an AC injury are also addressed. The primary goal of the nonoperative treatment protocol is to return the athlete to full activities as quickly and as safely as possible. 相似文献
40.
Two cases are reported in which, after ACL reconstruction with autologous hamstring grafts, tibial polylactide interference
screws migrated into the knee joint. Clinically, both patients presented with recurrent locking of the joint. In one case,
a broken 15 mm-long tip of the screw was found intra-articularly. In the other case, the whole screw had migrated into the
joint cavity. The degradation process of polylactic acid, operative technique and bone quality are discussed as possible reasons
for these complications. 相似文献