全文获取类型
收费全文 | 4940篇 |
免费 | 320篇 |
国内免费 | 11篇 |
专业分类
耳鼻咽喉 | 43篇 |
儿科学 | 120篇 |
妇产科学 | 133篇 |
基础医学 | 750篇 |
口腔科学 | 208篇 |
临床医学 | 494篇 |
内科学 | 1053篇 |
皮肤病学 | 184篇 |
神经病学 | 403篇 |
特种医学 | 100篇 |
外科学 | 598篇 |
综合类 | 74篇 |
一般理论 | 1篇 |
预防医学 | 345篇 |
眼科学 | 139篇 |
药学 | 333篇 |
中国医学 | 11篇 |
肿瘤学 | 282篇 |
出版年
2023年 | 33篇 |
2022年 | 69篇 |
2021年 | 131篇 |
2020年 | 71篇 |
2019年 | 121篇 |
2018年 | 125篇 |
2017年 | 67篇 |
2016年 | 95篇 |
2015年 | 99篇 |
2014年 | 147篇 |
2013年 | 216篇 |
2012年 | 285篇 |
2011年 | 307篇 |
2010年 | 177篇 |
2009年 | 131篇 |
2008年 | 264篇 |
2007年 | 317篇 |
2006年 | 274篇 |
2005年 | 261篇 |
2004年 | 254篇 |
2003年 | 239篇 |
2002年 | 217篇 |
2001年 | 53篇 |
2000年 | 52篇 |
1999年 | 58篇 |
1998年 | 63篇 |
1997年 | 38篇 |
1996年 | 36篇 |
1995年 | 42篇 |
1994年 | 42篇 |
1993年 | 29篇 |
1992年 | 33篇 |
1991年 | 30篇 |
1990年 | 34篇 |
1989年 | 31篇 |
1988年 | 33篇 |
1987年 | 18篇 |
1985年 | 36篇 |
1984年 | 28篇 |
1983年 | 31篇 |
1982年 | 32篇 |
1981年 | 24篇 |
1980年 | 27篇 |
1979年 | 24篇 |
1978年 | 23篇 |
1976年 | 29篇 |
1944年 | 22篇 |
1943年 | 18篇 |
1913年 | 20篇 |
1912年 | 24篇 |
排序方式: 共有5271条查询结果,搜索用时 9 毫秒
51.
Ludwig Waelsch Fritz Juliusberg Leo von Zumbusch Edgar Braendle Alfred Roth Max Leibkind Rudolf Winternitz Max Joseph F. Lewandowsky J. Ullmann Hoehne R. Volk V. Lion Oskar Müller Zweig 《Archives of dermatological research》1910,101(2-3):422-446
Ohne Zusammenfassung 相似文献
52.
V. Lion Max Joseph Max Leibkind Max Winkler H. Merz Alfred Jungmann Ludwig Zweig Fritz Juliusberg Oskar Müller J. Ullmann Hoehne Heimann Edgar Braendle C. Leiner Alfred Roth Richard Fischel 《Archives of dermatological research》1911,106(1-3):417-441
Ohne Zusammenfassung 相似文献
53.
Don L. Goldenberg Kenneth D. Brandt Alan S. Cohen Edgar S. Cathcart 《Arthritis \u0026amp; Rheumatology》1975,18(1):83-90
Surgery and needle aspiration have been evaluated as initial modes of drainage in 59 patients with acute septic arthritis. Full recovery was noted in 42% treated surgically at the outset. On the other hand, 67% of those treated by needle aspiration recovered without sequelae, despite the greater prevalence in this group of adverse host factors-eg, serious underlying illness, concommitant extraarticular infection, prior arthritis in the infected joint, and recent antibiotic or immunosuppressive therapy. 相似文献
54.
Geovana L. Santana Murilo C. Crovace Ernesto E. Mazn Adilson J. A. de Oliveira Theo Z. Pavan Edgar D. Zanotto 《Materials》2022,15(9)
Magnetic hyperthermia (MHT) is a therapy that uses the heat generated by a magnetic material for cancer treatment. Magnetite nanoparticles are the most used materials in MHT. However, magnetite has a high Curie temperature (Tc~580 °C), and its use may generate local superheating. To overcome this problem, strontium-doped lanthanum manganite could replace magnetite because it shows a Tc near the ideal range (42–45 °C). In this study, we developed a smart composite formed by an F18 bioactive glass matrix with different amounts of Lanthanum-Strontium Manganite (LSM) powder (5, 10, 20, and 30 wt.% LSM). The effect of LSM addition was analyzed in terms of sinterability, magnetic properties, heating ability under a magnetic field, and in vitro bioactivity. The saturation magnetization (Ms) and remanent magnetization (Mr) increased by the LSM content, the confinement of LSM particles within the bioactive glass matrix also caused an increase in Tc. Calorimetry evaluation revealed a temperature increase from 5 °C (composition LSM5) to 15 °C (LSM30). The specific absorption rates were also calculated. Bioactivity measurements demonstrated HCA formation on the surface of all the composites in up to 15 days. The best material reached 40 °C, demonstrating the proof of concept sought in this research. Therefore, these composites have great potential for bone cancer therapy and should be further explored. 相似文献
55.
56.
Targarona EM Maldonado EM Marzol JA Marinello F 《World journal of gastrointestinal surgery》2010,2(6):179-186
The advent of minimally invasive surgery and the advances in endoluminal flexible endoscopy have converged to generate a new concept in digestive surgery, whose acronym natural orifice transluminal endoscopic surgery (NOTES), has become a familiar term in the surgical community. NOTES has been performed through the mouth, the bladder, the rectum and the vagina. Of these four approaches, the vagina has gained most popularity for several reasons. It is not only readily accessible and easy to decontaminate but it also provides safe entry and simple closure. The transvaginal approach has been described in the experimental and the clinical setting as an option for cholecystectomy, nephrectomy, splenectomy, segmental gastrectomy, retroperitoneal exploration and bariatric surgery. However, larger series are needed to delineate the exact risks of this approach, and to transcend cultural barriers that impede its wider introduction. Prospective randomized trials will shed light on the definitive role of the vaginal approach in minimal invasive surgery of the future. 相似文献
57.
58.
Andrew Edgar 《Medicine, health care, and philosophy》2013,16(2):295-304
The purpose of this paper is to provide a normative model for the assessment of the exercise of power by Big Pharma. By drawing on the work of Steven Lukes, it will be argued that while Big Pharma is overtly highly regulated, so that its power is indeed restricted in the interests of patients and the general public, the industry is still able to exercise what Lukes describes as a third dimension of power. This entails concealing the conflicts of interest and grievances that Big Pharma may have with the health care system, physicians and patients, crucially through rhetorical engagements with Patient Advocacy Groups that seek to shape public opinion, and also by marginalising certain groups, excluding them from debates over health care resource allocation. Three issues will be examined: the construction of a conception of the patient as expert patient or consumer; the phenomenon of disease mongering; the suppression or distortion of debates over resource allocation. 相似文献
59.
60.