全文获取类型
收费全文 | 1765篇 |
免费 | 64篇 |
国内免费 | 16篇 |
专业分类
耳鼻咽喉 | 168篇 |
儿科学 | 54篇 |
妇产科学 | 41篇 |
基础医学 | 151篇 |
口腔科学 | 86篇 |
临床医学 | 112篇 |
内科学 | 80篇 |
皮肤病学 | 8篇 |
神经病学 | 157篇 |
特种医学 | 81篇 |
外科学 | 478篇 |
综合类 | 144篇 |
预防医学 | 34篇 |
眼科学 | 84篇 |
药学 | 58篇 |
1篇 | |
中国医学 | 13篇 |
肿瘤学 | 95篇 |
出版年
2023年 | 26篇 |
2022年 | 79篇 |
2021年 | 90篇 |
2020年 | 61篇 |
2019年 | 58篇 |
2018年 | 63篇 |
2017年 | 53篇 |
2016年 | 50篇 |
2015年 | 57篇 |
2014年 | 128篇 |
2013年 | 135篇 |
2012年 | 82篇 |
2011年 | 118篇 |
2010年 | 69篇 |
2009年 | 93篇 |
2008年 | 92篇 |
2007年 | 81篇 |
2006年 | 64篇 |
2005年 | 57篇 |
2004年 | 49篇 |
2003年 | 32篇 |
2002年 | 19篇 |
2001年 | 31篇 |
2000年 | 23篇 |
1999年 | 20篇 |
1998年 | 16篇 |
1997年 | 24篇 |
1996年 | 14篇 |
1995年 | 13篇 |
1994年 | 8篇 |
1993年 | 13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 | 10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1845条查询结果,搜索用时 15 毫秒
1.
2.
《Archivos de la Sociedad Espa?ola de Oftalmología》2020,95(5):231-235
Methanol poisoning is often described in the literature, but not transdermal or inhalational poisoning. It usually involves variable multi-organ damage, among which visual, neurological, and gastrointestinal involvement, as well as the metabolic and electrolyte changes that can lead to death. Contact with toluene by occupational or intentional inhalation may also cause neurological abnormalities. This article describes the case of a female patient who was seen in the Emergency Department due to bilateral visual loss secondary to accidental poisoning (inhalation-transdermal) with a solvent containing methanol and toluene. She had a favourable outcome during admission after treatment with ethanol in perfusion and corticosteroids. 相似文献
3.
双侧内囊前肢毁损术治疗难治性强迫症疗效及随访研究 总被引:9,自引:0,他引:9
目的 对难治性强迫症进行双侧内囊前肢毁损术治疗 ,评定手术疗效并进行 2年随访 ,以进一步探索脑外科手术对难治性强迫症的疗效 ,并探讨手术治疗的良好适应症。方法 对 2 8例难治性强迫症患者进行双侧内囊前肢毁损术治疗 ,并分别在手术前、手术后二周、手术后三月、手术后六月、手术后一年、手术后二年进行Y BOCS、HAMA、HAMD量表评定及术后疗效评定。结果 (1)强迫症患者手术后各期Y BOCS评分、HAMA评分与手术前比较均下降 ,有极显著差异 (P <0 .0 0 1) ;(2 )手术后各期Y BOCS的强迫思维评分均有明显下降 (P <0 .0 0 1) ,强迫行为在手术后 1年和 2年 ,与手术前比较无明显改变 (P >0 .0 5 ) ;(3)手术后 2年的总有效率为 5 3.5 % ,明显低于手术后 3月的总有效率 (P <0 .0 1)。结论 采用双侧内囊毁损术有相当的治疗效果 ,对于难治性强迫症患者可作为一种补充治疗手段 ;手术治疗对强迫行为的长期疗效较差 ,以严重的强迫思维为主的难治性强迫症患者为手术更好的适应症。 相似文献
4.
Frank Diesner Dr. med. Dag Moskopp Christoph Schul Hansdetlef Wassmann 《Neurosurgical review》1997,20(4):274-277
A 21-year-old man was injured by a tailboard of a truck. He suffered a severe head injury with bilateral depressed skull fractures necessitating surgical decompression. On admission to the hospital the patient showed bending to pain stimuli (Glasgow Coma Score 5). Anisocoria was noticed from the beginning. Initial intracranial pressure (ICP), measured 3 hours after injury, was 30 mm Hg, and the cerebral perfusion pressure (CPP) was 70 mm Hg. During surgical elevation of the skull fracture on the right side an unexplainable rise of ICP to values of 100 mm Hg occurred, which corresponded to the mean arterial blood pressure (MAP). At the same time both pupils were dilated and fixed indicating a lack of cerebral perfusion. Due to immediate trephination of the opposite side, the ICP was lowered to values below 20 mm Hg, and sufficient cerebral perfusion (above 50 mm Hg) was regained. The patient showed a good recovery and was transferred to a rehabilitation center 5 weeks after injury.This case report emphasizes the importance of early and continuous intracranial pressure monitoring for adequate therapy in neurosurgical emergencies. 相似文献
5.
The reverse U incision method has been employed for the correction of the unilateral cleft lip nose deformity for more than twenty years with satisfactory results. It has some columella lengthening effect and thus has proved to be useful for the correction of nasal deformities of bilateral cleft lip. To augment its columella lengthening effect a columella relaxation incision is added to the bilateral reverse U incision for the correction of the bilateral cleft lip nose deformity. This results in a reconstructed columella of satisfactory length and width. 相似文献
6.
Horst J. Jaeger Klaus D. Mathias Udo Kempkes 《Cardiovascular and interventional radiology》1994,17(6):328-332
A 66-year-old man presented with bilateral subclavian steal syndrome (SSS) due to proximal subclavian artery occlusions. He was treated by percutaneous transluminal balloon angioplasty (PTA) and stent implantation in the left subclavian artery and by PTA alone in the right subclavian artery. We could demonstrate that interventional treatment of symptomatic bilateral SSS is possible. If PTA alone is insufficient, stent implantation should be considered. 相似文献
7.
J. Potter 《European journal of plastic surgery》1988,11(4):162-168
Summary The importance of the premaxillary position, size and shape in the development of the face and nose is discussed. The anthropological development of the premaxilla is studied. These factors are to be considered when cleft lip repairs are being planned and developed. Several cases are presented and discussed. 相似文献
8.
Thirty randomly oriented T’s were presented in a circle around fixation at an eccentricity of 11° such that each T was crowded by its neighbors. Two locations within the same hemifield (unilateral condition) or one location in each hemifield (bilateral condition) were precued for subsequent probing. Observers were then asked to report the orientation of a target T at one of these locations. A bilateral field advantage was found: target identification was better when the two precued targets were in different hemifields than when they were within the same hemifield. This bilateral advantage was absent when only targets were presented, without any distracters. Further controls showed that this advantage could not be attributed to differences between horizontal and vertical target alignments or to visual field anisotropies. A similar bilateral advantage has been reported for multiple object tracking (Alvarez, G. A., & Cavanagh, P. (2005). Independent resources for attentional tracking in the left and right visual fields. Psychological Science 16(8), 637-643) and other attentional tasks. Our results suggest that crowding also demonstrates separate attentional resources in the left and right hemifields. There was a cost to attending to two targets presented unilaterally over attending to a single target. However, this cost was reduced when the two crowded targets were in separate hemifields. 相似文献
9.
Glen Husada Katleen Libberecht Tom Peeters Jacques Populaire 《European Journal of Trauma》2005,31(1):68-71
Abstract
Background:
Osteoporosis is characterized by low bone density and poor bone mineralization. Mid-diaphyseal stress (insufficiency) fractures of the femur caused by osteoporosis are rare. The symptoms of these lesions are vague and confusing. The physician must be alert to the possibility of femoral shaft stress fractures when evaluating an elderly patient complaining of back, hip or leg pain.
Case Study:
A 72-year-old osteoporotic female patient with bilateral mid-diaphyseal stress fractures of the femur is reported. The diagnosis of femoral shaft stress fracture in the elderly is very difficult when based on physical findings and plain radiography only. A magnetic resonance imaging (MRI) scan or nuclear scintigraphy is necessary for early diagnosis. In the described case, the patient had an excellent result after surgical treatment with intramedullary nails.
Conclusion:
MRI or nuclear scintigraphy must be obtained to exclude the possibility of femoral shaft stress fractures in the elderly. In the absence of contraindications, surgery is the best solution for this kind of lesion. 相似文献
10.
双侧唇裂继发鼻畸形的矫正 总被引:5,自引:0,他引:5
目的通过对双侧唇裂继发鼻畸形进行细致的病理解剖学分析,制定出具体的治疗目标,探讨矫正的有效手术方法。方法以双侧唇裂继发鼻畸形的病理解剖学为基础,将手术程序分为鼻小柱及鼻尖整形、鼻翼软骨的整形、鼻底的整形3个连续的步骤。结果自2000年以来应用上述方法手术矫正36例,其中畸形严重的双侧完全性唇裂术后患者22例,占61.6%。所有病例术后伤口均Ⅰ期愈合,鼻外形明显改善,无感染及皮瓣坏死等并发症发生。术后随访10~24个月,平均17个月,满意率高达100%。结论双侧唇裂继发鼻畸形具有其特有的病理解剖学特征,以解剖学特征基础制定具体手术方案,确保了最终疗效的满意率。 相似文献