全文获取类型
收费全文 | 1758篇 |
免费 | 68篇 |
国内免费 | 16篇 |
专业分类
耳鼻咽喉 | 168篇 |
儿科学 | 51篇 |
妇产科学 | 101篇 |
基础医学 | 170篇 |
口腔科学 | 86篇 |
临床医学 | 102篇 |
内科学 | 72篇 |
皮肤病学 | 7篇 |
神经病学 | 157篇 |
特种医学 | 75篇 |
外科学 | 423篇 |
综合类 | 143篇 |
预防医学 | 39篇 |
眼科学 | 78篇 |
药学 | 58篇 |
1篇 | |
中国医学 | 13篇 |
肿瘤学 | 98篇 |
出版年
2023年 | 29篇 |
2022年 | 64篇 |
2021年 | 90篇 |
2020年 | 62篇 |
2019年 | 61篇 |
2018年 | 62篇 |
2017年 | 60篇 |
2016年 | 53篇 |
2015年 | 57篇 |
2014年 | 129篇 |
2013年 | 134篇 |
2012年 | 79篇 |
2011年 | 120篇 |
2010年 | 71篇 |
2009年 | 88篇 |
2008年 | 83篇 |
2007年 | 79篇 |
2006年 | 66篇 |
2005年 | 55篇 |
2004年 | 45篇 |
2003年 | 35篇 |
2002年 | 24篇 |
2001年 | 30篇 |
2000年 | 27篇 |
1999年 | 21篇 |
1998年 | 17篇 |
1997年 | 24篇 |
1996年 | 16篇 |
1995年 | 11篇 |
1994年 | 12篇 |
1993年 | 12篇 |
1992年 | 13篇 |
1991年 | 5篇 |
1990年 | 8篇 |
1989年 | 6篇 |
1988年 | 4篇 |
1987年 | 12篇 |
1986年 | 5篇 |
1985年 | 6篇 |
1984年 | 8篇 |
1982年 | 8篇 |
1981年 | 3篇 |
1980年 | 8篇 |
1979年 | 5篇 |
1978年 | 3篇 |
1977年 | 5篇 |
1976年 | 3篇 |
1975年 | 5篇 |
1974年 | 6篇 |
1972年 | 3篇 |
排序方式: 共有1842条查询结果,搜索用时 46 毫秒
51.
目的:探讨达芬奇机器人经双侧腋窝和乳晕途径(bilateral axillo-breast approach, BABA)入路实施甲状腺手术时体位的摆放护理,以保障手术顺利进行。方法:2015 年5 月至2016 年12月我院运用达芬奇机器人手术系统完成机器人BABA 入路甲状腺手术共83例。本研究总结分析了病人手术体位的安置、术后并发症发生及相关护理因素。83例患者均采取头高脚低仰卧位(与地面约呈15-30°),肩部略垫高,患者乳房下方安置一条弹力绑带,固定于手术床旁,将患者双侧乳房向上推高,最大限度地减小术者的手术盲区,扩大手术视野。结果:83例均顺利完成达芬奇机器人BABA 入路甲状腺手术,无一例出现因体位不当、护理失误而引起的并发症。患者满意度为100%。结论:达芬奇机器人BABA入路甲状腺手术术中合理放置体位可保障手术安全顺利进行,并可有效预防术后并发症的发生。 相似文献
52.
Agnes I. Berta Abbas Agaimy Joachim M. Braun Bernhard Manger Friedrich E. Kruse Leonard Holbach 《Orbit (Amsterdam, Netherlands)》2015,34(5):299-301
IgG4-related disease is a newly recognized fibro-inflammatory condition. The purpose of this report is to present a patient with 11 years of follow-up, who revealed characteristic features of IgG4-related disease with systemic, orbital and corneal involvement and showed a favorable response to steroids and rituximab treatment. 相似文献
53.
目的 探讨内镜下3种方式同期平行放置双侧金属支架治疗无法手术切除肝门胆管恶性梗阻的疗效。方法 回顾性分析2012年1月—2019年2月期间上海东方肝胆外科医院采用内镜下同期平行放置双侧金属支架治疗无法手术切除肝门胆管恶性梗阻(Bismuth Ⅱ~Ⅳ型)的118例患者资料。按照支架放置方式分为3组:双侧支架均跨越十二指肠主乳头(long long-stent by stent,LL-SBS)组(53例)、单侧支架跨越十二指肠主乳头(long short-SBS,LS-SBS)组(53例)和双侧支架均不跨越十二指肠主乳头(short short-SBS,SS-SBS)组(12例)。主要观察指标包括临床成功率、支架通畅期、内镜下双侧胆管再干预成功率和生存时间。结果 3组的临床成功率分别为96.2%(51/53)、98.1%(52/53)、91.7%(11/12),支架通畅期分别为9.2个月(8.0~10.3个月)、11.6个月(6.8~16.4个月)、8.1个月(3.7~12.5个月),患者生存时间分别为6.7个月(4.6~8.8个月)、7.6个月(5.7~9.4个月)、7.1个月(0.7~13.6个月),以上指标3组间比较差异均无统计学意义(P>0.05);在内镜下双侧胆管再干预成功率上,LL-SBS组为12/13,LS-SBS组为0/10,SS-SBS组为1/5,差异有统计学意义(P<0.001)。结论 平行放置胆管双侧金属支架是治疗肝门胆管恶性梗阻的一项有效的内镜引流技术;双侧支架均跨越十二指肠主乳头的方式可以提高双侧胆管再干预的成功率。 相似文献
54.
《Gait & posture》2022
BackgroundBilateral internal rotation gait is a common gait abnormality in children with bilateral cerebral palsy, but still not fully understood.Research questionThe aim of this clinical study was to analyze the effects of artificially induced bilateral internal rotation gait on kinematics and kinetics. Our hypothesis was, that the internal rotation gait defined as increased dynamic internal hip rotation itself causes significant alterations in gait kinematics and kinetics.Methods30 typically developing children with a mean age of 12 (SD 3) years (range 8 – 16) performed three-dimensional gait analysis in two different conditions: with unaffected gait and with artificially induced bilateral internal rotation gait with two rotation bandages worn in order to internally rotate the hips. Kinematic and kinetic changes between these two conditions were calculated and compared using a mixed linear model with “gait condition” as fixed effect and both “limb” and “patient” as random effects.ResultsThe rotation bandages induced a significant increase in internal hip rotation and foot progression angle towards internal without affecting pelvic rotation. The peak hip internal rotator moment during loading response and the peak hip external rotator moment during the first half of stance phase increased significantly and the peak hip internal rotator moment during the second half of stance phase decreased significantly. Anterior pelvic tilt, hip flexion, knee flexion and ankle dorsiflexion increased significantly. The first peak of the frontal hip moment decreased, and the second increased significantly. The second peak of the frontal knee moment decreased significantly, while the first didn’t change significantly.SignificanceThe data suggest, that the bilaterally increased dynamic internal hip rotation itself has a relevant impact on frontal hip moments. The increased anterior pelvic tilt, hip and knee flexion may be either induced by the pull of the rotation bandage or a secondary gait deviation. 相似文献
55.
SCHAFER R. O.; HEINE H.; BOHM J.; SCHILDHAUS I.; WALLRABE D.; COBET H.; RUSER H. 《European heart journal》1987,8(9):1032-1038
A case is reported of bilateral atrial myxomas diagnosed noninvasivelyby echocardiography and successfully removed. The excised tumormass consisted of a mobile right atrial myxoma prolapsing intothe right ventricle and a less mobile, not prolapsing myxomain the left atrium. The operation was performed entirely onthe basis of echocardiographic findings, which correlated wellwith the operative results. Further investigation by computertomography verified the diagnosis, but added no extra informationof importance for therapy. Diagnostic aspects of the combinedapplication of M-mode and cross-sectional echocardiography withDoppler echocardiography are emphasized. Postoperative follow-upechocardiography showed the complete removal of the myxomasand improvement of cardiac function. 相似文献
56.
Orthodontic management of a complete and an incomplete maxillary canine-first premolar transposition
Carmen Lorente Pedro Lorente Maria Perez-Vela Cristina Esquinas Teresa Lorente 《The Angle orthodontist》2020,90(3):457
Maxillary canine and first premolar transposition is a complicated dental anomaly to treat, especially if the clinician''s goal is to orthodontically move the canine into its normal position. Early diagnosis with cone-beam computed tomography simplifies the treatment of this pathology. This case report describes a patient with bilateral transposition, one complete and the other incomplete, involving the maxillary canine and the first premolar (Mx.C.1P). The orthodontic treatment involved the correction of both transpositions. In the complete transposition, the traction was mesial and upward to move the canine into a more apical position with a wider dentoalveolar process for easier crown interchange. 相似文献
57.
目的: 比较双侧唇腭裂新生儿口内扫描数字化模型和硅橡胶制取灌注的超硬石膏模型的可靠性和稳定性。方法: 收集19例双侧唇腭裂新生儿病例,分别制取口内扫描数字化模型和硅橡胶取模超硬石膏灌注模型,对上颌牙槽骨长度、上颌牙槽骨宽度、腭裂宽度及上颌中线偏斜量等指标进行测量。采用SPSS 24.0软件包对测量结果进行统计学分析。结果: 2种方法上颌牙槽骨长度、上颌牙槽骨宽度、腭裂宽度及上颌中线偏斜量3次测量间均无统计学差异(P>0.05),2种方法的测量值无统计学差异(P>0.05)。结论: 双侧唇腭裂新生儿口内扫描获取的数字化模型与硅橡胶取模超硬石膏灌注获取的石膏模型各测量项目之间无显著差异。口内数字化扫描操作过程简便,可以提高诊疗效率,新生儿承受痛苦少,风险小,可广泛用于唇腭裂患儿的研究、诊断分析及临床治疗。 相似文献
58.
目的 探讨腹腔镜与开腹全子宫加双侧输卵管切除术对子宫疾患患者的疗效和术后性生活质量的影响。方法 选择2018年1月至2019年9月在铜陵市人民医院接受全子宫加双侧输卵管切除手术治疗的115例子宫疾患患者,根据手术方式不同将患者分为腹腔镜组(n=43)和开腹组(n=72),腹腔镜组采用腹腔镜下全子宫加双侧输卵管切除术治疗,开腹组采用传统的经腹式全子宫加双侧输卵管切除术治疗。比较两组患者手术时间、术中出血量、术后住院时间、术后通气时间、住院总费用以及阴道残端并发症与术后性生活质量等情况。结果 腹腔镜组患者术后通气时间及术后住院时间短于开腹组,术中出血量明显少于开腹组,差异均有统计学意义(P<0.05);腹腔镜组患者手术时间长于开腹组,住院总费用高于开腹组,差异均有统计学意义(P<0.05);腹腔镜组术后阴道残端肉芽增生发生率为7.9%,低于开腹组的29.7%,且术后性交痛和性交不适较开腹组也明显减少,差异均有统计学意义(P<0.05)。结论 腹腔镜全子宫加双侧输卵管切除术较传统开腹全子宫加双侧输卵管切除临床效果更好,患者术后性生活质量更满意,值得临床推广。 相似文献
59.
Background
Little is known about clinical improvement in the non-operated hand after unilateral surgery for patients who present with bilateral carpal tunnel syndrome (CTS). In this prospective study of patients with bilateral CTS, we evaluated the clinical effects on the non-operated hand following unilateral contralateral carpal tunnel surgical release.Material and Methods
During a consecutive period of 22 months, 69 patients with bilateral CTS underwent unilateral open carpal tunnel release. Bilateral subjective and objective evaluations were performed pre-operatively, at days 2, 15 and 180 after surgery. Subjective evaluations, analysed with Student t test, included the Boston-Levine symptom severity score and a visual analogue scale including pain, nocturnal symptoms and numbness. A telephone survey was conducted 12 months after surgery.Results
The Boston-Levine severity score of the contralateral non-operated hand decreased from 2.70 pre-operatively to 1.70 at 2 days (p < 0.001). The visual analogue pain score decreased at 2 days for 61 patients (88 %), whereas the nocturnal symptoms decreased or disappeared in 63 cases (91 %) and the paresthesia in 52 cases (75 %) (ps < 0.001). These beneficial effects were stable in time with no statistically significant change at 180 days. Overall, 58 patients (84 %) observed a total resolution or a significant improvement in their symptoms at 6 months. At 12 months, 100 % of patients responded to a telephone survey. Fifty one of them (74 %) reported minimal or no symptoms on the non-operated hand. Linear regression (analysis of variance [ANOVA]) showed that gender, age, professional status, duration of pre-operative symptoms and severity of electrophysiological disturbances were not predictive of post-operative evolution in the non-operated hand after unilateral surgery for CTS. 相似文献60.
Masahiro Nakamura Noriaki Kawanabe Rie Adachi Takashi Yamashiro Hiroshi Kamioka 《The Angle orthodontist》2019,89(2):333
This report illustrates successful nonsurgical orthodontic treatment of a hypodivergent adult patient with bilateral posterior scissors bite (Brodie bite) and excessive overjet. A 26-year-old woman primarily reported maxillary incisor protrusion. She was diagnosed with Class ll division 1 malocclusion with skeletal Class I, short face, low mandibular plane angle and bilateral posterior scissors bite. A lingual arch with anterior bite block and posterior miniscrews with preadjusted edgewise appliances were used to improve the bilateral scissors bite. After achieving molar occlusion, the maxillary first premolars were extracted, and six miniscrews were used to improve the anterior-posterior and vertical discrepancies. After active treatment for 56 months, the convex facial profile with excessively protruded lips was improved and good interdigitation with ideal incisor relationship was achieved. Additionally, the irregular movements of the incisal path and the bilateral condyles during lateral excursion were improved. At 13 months of retention, a satisfactory facial profile, occlusion, and jaw movements were maintained. The treatment results suggest that miniscrews and fixed bite blocks were effective and efficient to facilitate correction of the bilateral scissors bite, excessive overjet, and vertical relationship correction in this nonsurgical orthodontic treatment. 相似文献