全文获取类型
收费全文 | 174319篇 |
免费 | 34780篇 |
国内免费 | 4419篇 |
专业分类
耳鼻咽喉 | 5451篇 |
儿科学 | 5566篇 |
妇产科学 | 2634篇 |
基础医学 | 5866篇 |
口腔科学 | 1806篇 |
临床医学 | 29846篇 |
内科学 | 50303篇 |
皮肤病学 | 7589篇 |
神经病学 | 16037篇 |
特种医学 | 7180篇 |
外国民族医学 | 9篇 |
外科学 | 43709篇 |
综合类 | 5727篇 |
现状与发展 | 76篇 |
预防医学 | 8650篇 |
眼科学 | 4030篇 |
药学 | 3941篇 |
22篇 | |
中国医学 | 1635篇 |
肿瘤学 | 13441篇 |
出版年
2024年 | 569篇 |
2023年 | 5082篇 |
2022年 | 2005篇 |
2021年 | 4175篇 |
2020年 | 6883篇 |
2019年 | 2890篇 |
2018年 | 8095篇 |
2017年 | 8046篇 |
2016年 | 9074篇 |
2015年 | 9477篇 |
2014年 | 16762篇 |
2013年 | 16894篇 |
2012年 | 7472篇 |
2011年 | 7315篇 |
2010年 | 11730篇 |
2009年 | 15357篇 |
2008年 | 7084篇 |
2007年 | 5400篇 |
2006年 | 7894篇 |
2005年 | 5117篇 |
2004年 | 4083篇 |
2003年 | 3163篇 |
2002年 | 3067篇 |
2001年 | 4669篇 |
2000年 | 3763篇 |
1999年 | 3882篇 |
1998年 | 3979篇 |
1997年 | 3837篇 |
1996年 | 3627篇 |
1995年 | 3470篇 |
1994年 | 2142篇 |
1993年 | 1693篇 |
1992年 | 1522篇 |
1991年 | 1534篇 |
1990年 | 1184篇 |
1989年 | 1269篇 |
1988年 | 1086篇 |
1987年 | 931篇 |
1986年 | 935篇 |
1985年 | 757篇 |
1984年 | 564篇 |
1983年 | 534篇 |
1982年 | 517篇 |
1981年 | 410篇 |
1980年 | 362篇 |
1979年 | 308篇 |
1978年 | 328篇 |
1977年 | 396篇 |
1975年 | 277篇 |
1972年 | 302篇 |
排序方式: 共有10000条查询结果,搜索用时 609 毫秒
31.
Peng‐fei Lei Shi‐long Su Ling‐yu Kong Cheng‐gong Wang Da Zhong Yi‐he Hu 《Orthopaedic Surgery》2019,11(5):914-920
Three‐dimensional (3D) printing technology, virtual reality, and augmented reality technology have been used to help surgeons to complete complex total hip arthroplasty, while their respective shortcomings limit their further application. With the development of technology, mixed reality (MR) technology has been applied to improve the success rate of complicated hip arthroplasty because of its unique advantages. We presented a case of a 59‐year‐old man with an intertrochanteric fracture in the left femur, who had received a prior left hip fusion. After admission to our hospital, a left total hip arthroplasty was performed on the patient using a combination of MR technology and 3D printing technology. Before surgery, 3D reconstruction of a certain bony landmark exposed in the surgical area was first performed. Then a veneer part was designed according to the bony landmark and connected to a reference registration landmark outside the body through a connecting rod. After that, the series of parts were made into a holistic reference registration instrument using 3D printing technology, and the patient's data for bone and surrounding tissue, along with digital 3D information of the reference registration instrument, were imported into the head‐mounted display (HMD). During the operation, the disinfected reference registration instrument was installed on the selected bony landmark, and then the automatic real‐time registration was realized by HMD through recognizing the registration landmark on the reference registration instrument, whereby the patient's virtual bone and other anatomical structures were quickly and accurately superimposed on the real body of the patient. To the best of our knowledge, this is the first report to use MR combined with 3D printing technology in total hip arthroplasty. 相似文献
32.
33.
34.
35.
Jamaal L. Benjamin MD PhD Rebecca Dennis DO Stacy White Jr MD David Munson MD Sudha A. Anupindi MD Maciej Piskunowicz MD Kassa Darge MD PhD Ami Gokli MD Misun Hwang MD 《Journal of ultrasound in medicine》2020,39(5):1031-1036
Bowel diseases of prematurity, including necrotizing enterocolitis, are dreaded ailments of neonates. Early diagnosis is difficult, with clinical and radiographic findings often inconclusive. We present a novel use of contrast-enhanced ultrasound in detection of pediatric bowel disease. Early identification of compromised blood flow or an at-risk bowel can be quantitatively detected and monitored. This ability has implications for guidance of emerging therapies, allowing targeting of inflammation. These findings represent an advancement in detection of bowel disease in neonates. 相似文献
36.
Maaike van Gerwen MD Naomi Alpert MS Raja Flores MD Emanuela Taioli MD PhD 《American journal of industrial medicine》2020,63(2):115-120
The association between asbestos exposure, mainly in occupational settings, and malignant mesothelioma has been well established; this has prompted several countries to establish mesothelioma epidemiologic surveillance programs often at the request of national agencies. This review compares currently existing mesothelioma registries worldwide to develop a concept model for a US real-time case capture mesothelioma registry. Five countries were identified with a mesothelioma specific registry, including Italy, France, UK, Australia, and South Korea. All, except the UK, used interviews to collect exposure data. Linkage with the national death index was available or was in future plans for all registries. The registries have limited information on treatment, quality of life, and other patient-centered outcomes such as symptoms and pain management. To thoroughly collect exposure data, “real-time” enrollment is preferable; to maximize the capture of mesothelioma cases, optimal coverage, and a simplified consent process are needed. 相似文献
37.
38.
39.
40.