全文获取类型
收费全文 | 3514篇 |
免费 | 226篇 |
国内免费 | 60篇 |
专业分类
耳鼻咽喉 | 42篇 |
儿科学 | 66篇 |
妇产科学 | 35篇 |
基础医学 | 511篇 |
口腔科学 | 50篇 |
临床医学 | 553篇 |
内科学 | 696篇 |
皮肤病学 | 45篇 |
神经病学 | 239篇 |
特种医学 | 312篇 |
外科学 | 595篇 |
综合类 | 44篇 |
一般理论 | 2篇 |
预防医学 | 158篇 |
眼科学 | 27篇 |
药学 | 181篇 |
中国医学 | 1篇 |
肿瘤学 | 243篇 |
出版年
2022年 | 33篇 |
2021年 | 57篇 |
2020年 | 41篇 |
2019年 | 57篇 |
2018年 | 61篇 |
2017年 | 39篇 |
2016年 | 69篇 |
2015年 | 77篇 |
2014年 | 85篇 |
2013年 | 116篇 |
2012年 | 153篇 |
2011年 | 113篇 |
2010年 | 95篇 |
2009年 | 91篇 |
2008年 | 166篇 |
2007年 | 195篇 |
2006年 | 144篇 |
2005年 | 146篇 |
2004年 | 125篇 |
2003年 | 112篇 |
2002年 | 92篇 |
2001年 | 95篇 |
2000年 | 114篇 |
1999年 | 126篇 |
1998年 | 71篇 |
1997年 | 74篇 |
1996年 | 67篇 |
1995年 | 56篇 |
1994年 | 51篇 |
1993年 | 38篇 |
1992年 | 60篇 |
1991年 | 64篇 |
1990年 | 55篇 |
1989年 | 67篇 |
1988年 | 74篇 |
1987年 | 49篇 |
1986年 | 51篇 |
1985年 | 45篇 |
1984年 | 30篇 |
1983年 | 31篇 |
1982年 | 22篇 |
1981年 | 23篇 |
1979年 | 35篇 |
1978年 | 43篇 |
1977年 | 31篇 |
1976年 | 26篇 |
1975年 | 23篇 |
1973年 | 31篇 |
1972年 | 30篇 |
1966年 | 20篇 |
排序方式: 共有3800条查询结果,搜索用时 9 毫秒
1.
Michels Guido Horn Rudolf Helfen Andreas Hagendorff Andreas Jung Christian Hoffmann Beatrice Jaspers Natalie Kinkel Horst Greim Clemens-Alexander Knebel Fabian Bauersachs Johann Busch Hans-Jörg Kiefl Daniel Spiel Alexander O. Marx Gernot Dietrich Christoph F. 《Der Anaesthesist》2022,71(4):307-310
Die Anaesthesiologie - 相似文献
2.
Recurrence, progression and survival in bladder cancer. A retrospective analysis of 232 patients with greater than or equal to 5-year follow-up 总被引:1,自引:0,他引:1
A retrospective study of 232 bladder tumours with minimum follow-up 5 years is presented. The carcinoma was superficial in 66%, muscle-invasive in 31% and could not be staged in 3%. Primary treatment was mainly transurethral resection for superficial tumour, but was cystectomy or radiotherapy in 22 of 29 T1 G3. Of the superficial tumours, 71% recurred. Progression to higher T stage occurred in 15% of Ta and 29% of T1 tumours, and half of these patients died of bladder cancer. The corrected 5-year survival rates in grades 1, 2A, 2B and 3-4 were 96, 84, 64 and 43%, and in stages Ta, T1, T2 and T3 they were 94, 69, 40 and 31%. All patients with T4 tumour died within 4 years. Among the 45 patients with 40 Gy irradiation + cystectomy, the corrected 5-year survival rate was 83% in superficial and 64% in muscle-invasive tumours, and among the 38 with radical radiotherapy the rates in T1-3 were 46, 36 and 13%. Transurethral resection was successful in most Ta cases. Most T1 tumours were, like T2-4, of higher grade than Ta. Prognosis was worse in T1 than in Ta. After progression to muscle-invasive disease, even during close follow-up the outlook was poor, as poor as for patients with primary muscle-invasive disease. 相似文献
3.
4.
5.
6.
Dr. Carsten Rist T.R. Johnson A. Becker A.W. Leber A. Huber S. Busch C.R. Becker M.F. Reiser K. Nikolaou 《Der Radiologe》2007,47(4):287-294
In a newly developed dual-source computed tomography system (DSCT) the relation of heart rate and image quality and the possible advantages of the system’s superior temporal resolution in the evaluation of left ventricular parameters as compared to results of cardiac magnetic resonance imaging (MRI) were assessed. Coronary CT angiography was performed using a DSCT (Somatom Defintion, Siemens Medical Solutions, Forchheim, Germany) in 21 patients (mean age 62±8; 15 male, 6 female). Image quality of the coronary arteries, the heart valves, and the left ventricular myocardium was assessed using a three-point grading scale. Ten of these patients also underwent cardiac MRI for the assessment of left ventricular function, using a SSFP (steady-state free precession) sequence. Left ventricular ejection fractions (LV-EF), the end-systolic volumes (ESV), and the end-diastolic volumes (EDV) were measured employing MRI and DSCT datasets. The image quality ratings for the coronary arteries at the optimal reconstruction interval were diagnostic even in patients with high heart rates (1.42±0.49). Analysis of global LV function using DSCT quantified from CTA datasets showed a good correlation with results of cardiac MRI [EF: r=0.75 (p=0.01); ESV: r=0.72 (p=0.19); EDV: r=0.71 (p=0.02)]. The dual-source CT system offers robust image quality of the coronary arteries, independent of the heart rate, and provides combined diagnostic imaging of coronary arteries, the heart valves, the myocardium, and the global left ventricular function. 相似文献
7.
8.
Susan Busch M.S. 《Administration and policy in mental health》1997,24(4):301-321
Several states have designed and implemented innovative programs for Medicaid beneficiaries that carve-out the provision of mental health from general health care. This paper describes several such programs and outlines the choices states face in designing these services. Major decisions include the selection of a public or private agency, how that agency is chosen, reimbursement schemes, eligibility criteria, and benefits to be covered. While carve-out programs have yielded initial savings, more research is needed on their effect on quality of care and general health care costs. 相似文献
9.
10.