全文获取类型
收费全文 | 15006篇 |
免费 | 1482篇 |
国内免费 | 44篇 |
专业分类
耳鼻咽喉 | 192篇 |
儿科学 | 333篇 |
妇产科学 | 271篇 |
基础医学 | 1684篇 |
口腔科学 | 274篇 |
临床医学 | 2618篇 |
内科学 | 3003篇 |
皮肤病学 | 208篇 |
神经病学 | 1344篇 |
特种医学 | 481篇 |
外科学 | 2149篇 |
综合类 | 151篇 |
一般理论 | 12篇 |
预防医学 | 1472篇 |
眼科学 | 317篇 |
药学 | 1013篇 |
中国医学 | 14篇 |
肿瘤学 | 996篇 |
出版年
2024年 | 20篇 |
2023年 | 224篇 |
2022年 | 143篇 |
2021年 | 349篇 |
2020年 | 369篇 |
2019年 | 294篇 |
2018年 | 510篇 |
2017年 | 381篇 |
2016年 | 421篇 |
2015年 | 448篇 |
2014年 | 653篇 |
2013年 | 869篇 |
2012年 | 1006篇 |
2011年 | 1041篇 |
2010年 | 730篇 |
2009年 | 782篇 |
2008年 | 965篇 |
2007年 | 973篇 |
2006年 | 1005篇 |
2005年 | 982篇 |
2004年 | 946篇 |
2003年 | 802篇 |
2002年 | 789篇 |
2001年 | 164篇 |
2000年 | 133篇 |
1999年 | 159篇 |
1998年 | 192篇 |
1997年 | 186篇 |
1996年 | 139篇 |
1995年 | 110篇 |
1994年 | 84篇 |
1993年 | 70篇 |
1992年 | 61篇 |
1991年 | 54篇 |
1990年 | 47篇 |
1989年 | 50篇 |
1988年 | 32篇 |
1987年 | 29篇 |
1986年 | 41篇 |
1985年 | 45篇 |
1984年 | 34篇 |
1983年 | 33篇 |
1982年 | 24篇 |
1981年 | 22篇 |
1980年 | 19篇 |
1978年 | 15篇 |
1977年 | 8篇 |
1976年 | 13篇 |
1975年 | 11篇 |
1949年 | 6篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
M. Novi C. Vanni P. D. Parchi M. Di Paolo N. Piolanti M. Scaglione 《Musculoskeletal surgery》2020,104(1):43-48
Over the years, the number of total hip replacements has been steadily increasing. Despite the improvement in surgical results, the number of claims for malpractice is higher. The primary endpoint of this work is to provide an analysis of litigation after hip replacement, to outline what are the instigating causes and costs. The secondary endpoint is to propose a possible preventive strategy for an improved care and a reduction in legal proceedings. The data of this study were collected from medical and legal files and from professional liability insurance of our institution from January 2005 to December 2016. Out of a total of 4770 THA, 40 claims were received. Peripheral nerve injuries represent the first cause of litigation (37%), followed by infectious complications, leg length discrepancy, metallosis, dislocations of the implant and a case of deep vein thrombosis. From the analysis of the past trial judgment, complications such as nerve lesions and infections are almost always recognized, as a medical error, with a high percentage of claims settled. This study shows the necessity of preventive strategies to reduce the higher number of claims for malpractice in total hip arthroplasty. Some complications such as nerve injuries and infection are frequently considered directly dependent on physician’s errors. Litigations can be reduced providing evidence of a diligent execution of the surgical procedure and of a proper postoperative management: the correct compilation of a specific informed consent and adequate doctor–patient communication. 相似文献
4.
Darren R. Feldman MD Yasser Ged MBBS Chung-Han Lee PhD Andrea Knezevic MS Ana M. Molina MD Ying-Bei Chen PhD Joshua Chaim DO Devyn T. Coskey MS Samuel Murray MS Satish K. Tickoo MD Victor E. Reuter MD Sujata Patil PhD Han Xiao MD Jahan Aghalar MD Arlyn J. Apollo MD Maria I. Carlo MD Robert J. Motzer MD Martin H. Voss MD 《Cancer》2020,126(24):5247-5255
5.
James I. Geller MD Joseph G. Pressey MD Malcolm A. Smith MD Rachel A. Kudgus PhD Mariana Cajaiba MD Joel M. Reid PhD David Hall PhD Donald A. Barkauskas PhD Stephen D. Voss MD Steve Y. Cho MD Stacey L. Berg MD Jeffrey S. Dome MD PhD Elizabeth Fox MD Brenda J. Weigel MD 《Cancer》2020,126(24):5303-5310
6.
Pulmonary hamartomas are usually an incidental finding and range in size from 1 cm to 8 cm in diameter in various series. We report a case of a massive pulmonary hamartoma (size 25.5 × 17.5 × 6.5 cm and weighing 1134 g) in a 61 year old male who presented with a short history of breathlessness. The tumour was arising from the medial border of the right lung and occupying most of the right chest extending in to the anterior mediastinum. The tumour was compressing the right lung and there was no evidence of infiltration into the surrounding structures. It was successfully treated by surgical resection and final histology was pulmonary hamartoma with predominantly adipose and leiomyomatous differentiation. 相似文献
7.
Fibromyalgia is a syndrome of widespread pain, nonrestorative sleep, disturbed mood, and fatigue. Optimal treatment involves
a multidisciplinary approach with a team of health care providers using pharmacologic and nonpharmacologic treatment. Because
of the heterogeneity of the illness, management should be individualized for the patient. Pharmacologic treatment should address
issues of pain control, sleep disturbance, fatigue, and any underlying coexisting mood disorder. Nonpharmacologic treatment
should include patient education, a regular exercise and stretching program, and cognitive behavioral therapy. All of these
are essential to improving functional capacity and quality of life. This review provides general guidelines in initiating
a successful pharmacologic treatment program for patients with fibromyalgia. 相似文献
8.
Steve Vucic Kevin D Cairns Kristin R Black Peter Siao Tick Chong Didier Cros 《Clinical neurophysiology》2006,117(2):392-397
OBJECTIVE: Cervical nerve root stimulation (CRS) is a technique of assessing the proximal segments of motor axons destined to upper extremity muscles. Few studies report normal values. The objective was to determine CMAP onset-latencies and CMAP amplitude, area, and duration changes in healthy controls for the abductor pollicis brevis (APB), abductor digiti minimi (ADM), biceps, and riceps muscles. In addition, to determine the tolerability of CRS, as measured by the visual analog scale (VAS). METHODS: We studied 21 healthy volunteers prospectively with CRS using four target muscles (APB, ADM, biceps, and triceps) bilaterally. Collision studies were used in all APB recordings. VAS was obtained in all subjects. RESULTS: Mean CMAP onset-latencies were: APB 14 +/- 1.5 ms; ADM 14.2 +/- 1.5 ms; biceps 5.4 +/- 0.6 ms; triceps 5.4 +/- 1.0 ms. Onset-latency significantly correlated with height for all nerves. The mean change in CMAP amplitude and area (%) between most distal stimulation and CRS was: APB reduction of 15.1 +/- 11.6 and 4.9 +/- 3.6%; ADM reduction of 21.1 +/- 10.7 and 17.2 +/- 8.8; biceps reduction of 10 +/- 11.5 and reduction of 8.7 +/- 6.8; triceps increase of 3.3 +/- 5.2 and 11.0 +/- 9.9% respectively. Mean CMAP duration change between most distal stimulation and CRS was: APB, increase of 20.4 +/- 7.4%; ADM, increase of 14.4 +/- 8.5%; biceps, increase of 13.9 +/- 10.8%; triceps, increase of 7.7 +/- 6.7%. The mean VAS score was 3.8 +/- 1.2, and all subjects completed the study. CONCLUSIONS: The present study establishes normative data and indicates that CRS is a well-tolerated technique. SIGNIFICANCE: The normal values may be used as reference data for the needle CRS technique in the assessment of proximal conduction abnormalities. 相似文献
9.
David M Dohan Joseph Choukroun Antoine Diss Steve L Dohan Anthony J J Dohan Jaafar Mouhyi Bruno Gogly 《Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics》2006,101(3):e37-e44
Platelet-rich fibrin (PRF) belongs to a new generation of platelet concentrates geared to simplified preparation without biochemical blood handling. In this initial article, we describe the conceptual and technical evolution from fibrin glues to platelet concentrates. This retrospective analysis is necessary for the understanding of fibrin technologies and the evaluation of the biochemical properties of 3 generations of surgical additives, respectively fibrin adhesives, concentrated platelet-rich plasma (cPRP) and PRF. Indeed, the 3-dimensional fibrin architecture is deeply dependent on artificial clinical polymerization processes, such as massive bovine thrombin addition. Currently, the slow polymerization during PRF preparation seems to generate a fibrin network very similar to the natural one. Such a network leads to a more efficient cell migration and proliferation and thus cicatrization. 相似文献
10.