全文获取类型
收费全文 | 809篇 |
免费 | 43篇 |
国内免费 | 16篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 82篇 |
妇产科学 | 13篇 |
基础医学 | 87篇 |
口腔科学 | 9篇 |
临床医学 | 106篇 |
内科学 | 144篇 |
皮肤病学 | 6篇 |
神经病学 | 16篇 |
特种医学 | 146篇 |
外科学 | 76篇 |
综合类 | 50篇 |
预防医学 | 37篇 |
眼科学 | 1篇 |
药学 | 30篇 |
肿瘤学 | 62篇 |
出版年
2021年 | 18篇 |
2020年 | 5篇 |
2019年 | 13篇 |
2018年 | 10篇 |
2016年 | 5篇 |
2015年 | 7篇 |
2014年 | 7篇 |
2013年 | 26篇 |
2012年 | 25篇 |
2011年 | 22篇 |
2010年 | 19篇 |
2009年 | 22篇 |
2008年 | 18篇 |
2007年 | 25篇 |
2006年 | 26篇 |
2005年 | 27篇 |
2004年 | 24篇 |
2003年 | 21篇 |
2002年 | 19篇 |
2001年 | 20篇 |
2000年 | 17篇 |
1999年 | 17篇 |
1998年 | 31篇 |
1997年 | 41篇 |
1996年 | 48篇 |
1995年 | 28篇 |
1994年 | 27篇 |
1993年 | 27篇 |
1992年 | 13篇 |
1991年 | 12篇 |
1990年 | 15篇 |
1989年 | 24篇 |
1988年 | 20篇 |
1987年 | 19篇 |
1986年 | 26篇 |
1985年 | 15篇 |
1984年 | 8篇 |
1983年 | 11篇 |
1982年 | 14篇 |
1981年 | 6篇 |
1980年 | 11篇 |
1979年 | 8篇 |
1978年 | 9篇 |
1977年 | 10篇 |
1976年 | 15篇 |
1975年 | 8篇 |
1968年 | 3篇 |
1967年 | 3篇 |
1966年 | 2篇 |
1960年 | 3篇 |
排序方式: 共有868条查询结果,搜索用时 998 毫秒
1.
2.
3.
4.
Ruprecht Nitschke Charles Pratt Michael Harris Jeffrey Krischer Teresa J. Vietti Holcombe Grier Willem Kamps Stuart Toledano 《Investigational new drugs》1992,10(2):93-96
CHIP (325 mg/M2), a second generation cisplatin derivative, was administered intravenously every 3 weeks to 85 pediatric patients with recurrent sarcomas (19), osteosarcomas (20), neuroblastoma (23), germ cell tumors (10), and other malignant tumors (7). Thirty-eight of them had been previously exposed to cisplatin. Partial remissions were only observed in 3 of 23 (13% SE=7%) patients having neuroblastoma. Severe thrombocytopenia (65%) and neutropenia (35%) were the dose limiting factors. 相似文献
5.
Alexander R Grier Katharine L Grier 《The Journal of the Canadian Chiropractic Association》1992,36(1):22-28
Chiropractic fee negotiations in Saskatchewan utilize the Chiropractic Compensation Review Committee with recourse to the Chiropractic Consultation Committee. Health care professionals who practise on a fee for service basis provide the government with a budgetary problem. Although the fees are set, the health care provider can determine his own income by deciding how many visit services he/she wishes to provide. In the fiscal years 1981-82 to 1990-91, chiropractors earned $699.00 per year more than one would expect given the increases in fee schedules. Each chiropractor earned $2,329.00 per year more than was necessary to make up for losses due to inflation. The allegation that unnecessary treatments were performed on patients is countered by analysis of the services per discrete patient values by mode of practice. The increased earnings of chiropractors was accomplished by treating an increasing percentage of the population who sought health care. Comparative information was obtained from the four western provinces. 相似文献
6.
7.
8.
9.
Low-artifact intravascular devices: MR imaging evaluation 总被引:2,自引:0,他引:2
Teitelbaum GP; Ortega HV; Vinitski S; Stern H; Tsuruda JS; Mitchell DG; Rifkin MD; Bradley WG Jr 《Radiology》1988,168(3):713-719
Flow-phantom magnetic resonance (MR) imaging, with use of both spin-echo (SE) and gradient-echo (GRE) techniques at 1.5 T, was performed on the percutaneous Greenfield (beta-III titanium alloy [TMA wire]), Amplatz (MP32-N alloy), and Simon nitinol filters and TMA wire facsimiles of the bird's nest, Gunther, new retrievable, and Amplatz vena caval filters. SE imaging allowed detection of thrombi as small as 5 X 5 mm trapped within the percutaneous Greenfield, Simon nitinol, and TMA-wire facsimile filters; with the MP32-N Amplatz filter, a larger volume of thrombus (10 X 20-mm clots) was necessary for clot detection. GRE imaging allowed detection of intraluminal tilting of the percutaneous Greenfield and facsimile Amplatz (TMA-wire) filters. GRE imaging was useful for demonstrating postfilter turbulence due to clots, which was greatest for the Amplatz filter. Imaging of facsimile vascular devices made of tantalum or TMA wire did not cause the severe "black-hole" MR artifacts typical of the stainless-steel devices. SE and GRE imaging were very useful for determining caval patency in two patients with previously placed Mobin-Uddin filters. Noninvasive MR evaluation of blood vessels in the presence of a variety of low-artifact intravascular devices appears feasible. 相似文献
10.
Variability of skin temperature in the waking monkey 总被引:3,自引:0,他引:3