全文获取类型
收费全文 | 1083篇 |
免费 | 63篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 16篇 |
儿科学 | 51篇 |
妇产科学 | 34篇 |
基础医学 | 108篇 |
口腔科学 | 28篇 |
临床医学 | 73篇 |
内科学 | 289篇 |
皮肤病学 | 9篇 |
神经病学 | 121篇 |
特种医学 | 38篇 |
外科学 | 168篇 |
综合类 | 21篇 |
一般理论 | 2篇 |
预防医学 | 23篇 |
眼科学 | 45篇 |
药学 | 72篇 |
肿瘤学 | 53篇 |
出版年
2024年 | 1篇 |
2023年 | 31篇 |
2022年 | 32篇 |
2021年 | 73篇 |
2020年 | 48篇 |
2019年 | 53篇 |
2018年 | 64篇 |
2017年 | 28篇 |
2016年 | 28篇 |
2015年 | 34篇 |
2014年 | 41篇 |
2013年 | 67篇 |
2012年 | 108篇 |
2011年 | 63篇 |
2010年 | 64篇 |
2009年 | 61篇 |
2008年 | 76篇 |
2007年 | 65篇 |
2006年 | 47篇 |
2005年 | 27篇 |
2004年 | 35篇 |
2003年 | 36篇 |
2002年 | 36篇 |
2001年 | 7篇 |
2000年 | 5篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1997年 | 1篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1983年 | 4篇 |
1982年 | 1篇 |
1972年 | 1篇 |
1949年 | 1篇 |
排序方式: 共有1151条查询结果,搜索用时 15 毫秒
71.
Background contextMultiple myeloma is the commonest primary malignancy of the spine, but it rarely presents as an extraosseous epidural tumor with only five cases reported in literature so far.PurposeThe purpose of this study was to heighten awareness and treatment options of a rare case of extraosseous epidural myeloma.Study designThe study design comprises a case report and literature review.MethodsWe present a 60-year-old lady with progressive paraplegia (American Spinal Injury Association grade C) with sensory blunting below T8 level of 2 months’ duration. Magnetic resonance imaging showed an extradural tumor in the dorsal epidural space from T6 to T7 without local bony involvement. She underwent a T6 and T7 laminectomy, T5–T8 pedicle screw instrumentation, and gross total resection of tumor. Histopathological diagnosis was consistent with myeloma. After surgery, the patient underwent local irradiation and adjuvant chemotherapy.ResultsNeurological improvement of one grade (American Spinal Injury Association grade C to D) was observed at 3 weeks postoperatively.ConclusionsIsolated extraosseous epidural myeloma without destruction or collapse of vertebral bodies should be included in the differential diagnosis of epidural mass lesions causing spinal cord compression. The overall prognosis in terms of survival is poor, but early decompression can prevent neurological deterioration and improve quality of life. 相似文献
72.
73.
Chi-Un Pae Antonio Drago Ashwin A. Patkar Tae-Youn Jun Alessandro Serretti 《European neuropsychopharmacology》2009,19(11):806-811
Suggestive associations have been reported between trace amines and heat shock proteins, and a disrupted pathophysiology that enhances the risk of psychosis and that modifies responses to antipsychotic treatments. Our group previously reported genetic studies on TAAR6 and HSP-70 separately in patients with schizophrenia. In the current study, we investigated possible epistasis between the same set of variations in a sample of 281 patients diagnosed with schizophrenia and 288 healthy controls. We applied the generalized multifactor dimensionality reduction (MDR) method and controlled covariates significantly associated with both diagnosis and treatment efficacy. To the best of our knowledge, epistasis between the present set of variations in schizophrenia has not been tested before. We found significant associations with both the risk of disease and response to treatment. However, the insufficiently balanced accuracy of the applied tests suggests that, despite significantly different genetic variations between cases and controls, these factors have a poor predictive value. Explanations for these findings and possible future directions are also discussed. 相似文献
74.
75.
76.
Marco Calabrò Stefano Porcelli Concetta Crisafulli Sheng-Min Wang Soo-Jung Lee Changsu Han Ashwin A. Patkar Prakash S. Masand Diego Albani Ilaria Raimondi Gianluigi Forloni Sofia Bin Alessandro Mattiaccio Vilma Mantovani Tae-Youn Jun Chi-Un Pae Alessandro Serretti 《Advances in therapy》2017,34(6):1482-1497
Introduction
Schizophrenia (SCZ) is one of the most disabling psychiatric disorders. Genetic factors play an important role in both SCZ liability and its treatment outcome. In the present paper, we investigated the effects of several single nucleotide polymorphisms (SNPs) within ten strong candidate genes involved with antipsychotics (APs) mechanisms of action.Methods
Two independent samples were investigated in the present study. Totals of 176 SCZ subjects and 326 controls of Korean ancestry, and 83 SCZ subjects and 194 controls of Italian ancestry were recruited and genotyped. SCZ risk and other parameters were also investigated.Results
Concerning APs response, only a nominal association with HOMER1 rs3822568 in the Korean sample was found. In the haplotype analysis, rs9801117 C–rs12668837 C–rs4621754 A haplotype within ESYT2 and NCAPG2 genes was associated with APs response in the same sample. As for secondary outcomes, rs7439 within PKDCC and rs12668837 within NCAPG2 were associated with SCZ risk in the Italian sample. In the haplotype analysis, rs2788478 G–rs2657375 T–rs1039621 A within the region between WDR60 and ESYT genes and rs2013 C (ESYT2)–rs6459896 A (NCAPG2) haplotypes were associated with SCZ in the same sample. No association was found in the Korean sample. Finally, our exploratory data suggest a possible modulation of HOMER1, ARC, BDNF, TXNRD2, WDR60, and ESYT2 genes in the APs response to specific symptom clusters.Conclusion
Our results did not support a primary role for the genes investigated in the APs response. On the other hand, our secondary results suggest a possible involvement of NACPG2 and PKDCC in SCZ liability. Finally, our exploratory findings may deserve further investigations in specific studies.77.
Mukund Joshi MD FAMS Karthik Ganesan DNB Harsha Navani Munshi DNB Subramania Ganesan MD Ashwin Lawande DNB 《Seminars in Ultrasound, CT and MRI》2008,29(2):72-97
Current advancements in imaging technology, especially three-dimensional/four-dimensional ultrasound and contrast-enhanced imaging, have increased the diagnostic yield of adnexal masses. The benefit of ultrasound is the characterization of an adnexal mass, suggesting the probable etiology of the mass. Masses may be divided as solid, cystic, or complex. It is predominantly the solid and complex masses that need a thorough evaluation. The role of color-flow imaging is now gaining importance and criteria for distinguishing between benign and malignant masses are often possible. Availability of a scoring system enables the differentiation of small adnexal masses. Several benign lesions may present as complex masses but can be distinguished and diagnosed on sonography. The availability of 3D ultrasound has been of great use to understand spatial relations and vascular morphology. Sonography allows a more detailed assessment of morphologic features of an adnexal mass. With a benign-appearing adnexal mass on sonography, the need for any further diagnostic tests is often obviated. 相似文献
78.
Ashwin Kurian Sidhbh Gallagher Abhiman Cheeyandira Robert Josloff 《Surgical endoscopy》2010,24(11):2789-2792
Aim
To identify variables that predict in-hospital length of stay (LOS) after laparoscopic ventral hernia repair (LVHR). 相似文献79.
80.
Alex Ulitsky Ashwin N. Ananthakrishnan Richard Komorowski James Wallace Sri Naveen Surapaneni Jose Franco Kia Saeian Samer Gawrieh 《Obesity surgery》2010,20(6):685-691