全文获取类型
收费全文 | 661篇 |
免费 | 43篇 |
国内免费 | 34篇 |
专业分类
儿科学 | 17篇 |
妇产科学 | 1篇 |
基础医学 | 57篇 |
口腔科学 | 11篇 |
临床医学 | 78篇 |
内科学 | 87篇 |
皮肤病学 | 11篇 |
神经病学 | 16篇 |
特种医学 | 173篇 |
外科学 | 44篇 |
综合类 | 25篇 |
预防医学 | 95篇 |
眼科学 | 18篇 |
药学 | 61篇 |
中国医学 | 24篇 |
肿瘤学 | 20篇 |
出版年
2022年 | 2篇 |
2021年 | 2篇 |
2018年 | 4篇 |
2017年 | 2篇 |
2016年 | 6篇 |
2015年 | 13篇 |
2014年 | 15篇 |
2013年 | 18篇 |
2012年 | 28篇 |
2011年 | 23篇 |
2010年 | 26篇 |
2009年 | 40篇 |
2008年 | 36篇 |
2007年 | 33篇 |
2006年 | 34篇 |
2005年 | 39篇 |
2004年 | 23篇 |
2003年 | 13篇 |
2002年 | 14篇 |
2001年 | 27篇 |
2000年 | 13篇 |
1999年 | 28篇 |
1998年 | 33篇 |
1997年 | 41篇 |
1996年 | 23篇 |
1995年 | 12篇 |
1994年 | 16篇 |
1993年 | 14篇 |
1992年 | 11篇 |
1991年 | 6篇 |
1990年 | 9篇 |
1989年 | 19篇 |
1988年 | 31篇 |
1987年 | 12篇 |
1986年 | 12篇 |
1985年 | 10篇 |
1984年 | 3篇 |
1983年 | 5篇 |
1982年 | 4篇 |
1981年 | 7篇 |
1980年 | 2篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1975年 | 4篇 |
1974年 | 3篇 |
1973年 | 2篇 |
1970年 | 2篇 |
1967年 | 2篇 |
排序方式: 共有738条查询结果,搜索用时 15 毫秒
1.
SG Hannover 《MedR Medizinrecht》2006,24(9):547-551
Abstrakt 1. § 95b Abs. 3 S. 1 SGB V normiert eine Schuldübernahme i.S. des § 69 S. 3 SGB V i.V. mit § 414 BGB.
2. Ein Vertrags(zahn)arzt, der in einem mit Kollegen aufeinander abgestimmten Verfahren oder Verhalten auf seine Zulassung
verzichtet, ist im Anschluss hieran nicht berechtigt, nach Ma?gabe des § 95 Abs. 3 SGB V Versicherte der gesetzlichen Krankenversicherung
als Behandlungsf?lle, die erst nach dem Verzicht aufgenommen werden, zu behandeln. (Leits?tze des Bearbeiters) 相似文献
2.
ZQ Yin MD SG Crewther PhD B Pirie BSc DP Crewther PhD 《Clinical & experimental ophthalmology》1997,25(4):107-109
Purpose: It was investigated whether alterations in neuronal structure and function occasioned by strabismic amblyopia also may be reflected in alterations in the expression on Y type neurons of a Cat-301 antibody sensitive antigen in the lateral geniculate nucleus (LGN) and cortex of our cat model of strabismic amblyopia. Methods/Results: The percentage of positively labelled cells was reduced in LGN laminae that received input from the deviated eye in strabismic amblyopic cats compared with normal cats. In the strabismic cortex, the density of immunopositive neurons was significantly reduced compared with normal, the effect being most pronounced in layer IV Conclusions: Despite previous physiological recordings indicating a decrease in X-cell associated acuity in strabismic amblyopia, the present findings imply that the changes in the early visual experience occasioned by strabismus also produce specific molecular changes in theY neuronal class. 相似文献
3.
Defenses of the hamster lung against human neutrophil and porcine pancreatic elastase 总被引:2,自引:0,他引:2
P J Stone E C Lucey J D Calore M P McMahon G L Snider C Franzblau 《Respiration; international review of thoracic diseases》1988,54(1):1-15
Instillation of human neutrophil elastase (HNE) into hamster lungs produces milder emphysema but more pulmonary hemorrhage than an equivalent amount of porcine pancreatic elastase (PPE), whether equivalence is determined by elastolytic units or moles. We undertook a study of the mechanisms of these differences. 125I-HNE or 3H-PPE were instilled intratracheally into hamsters. The partitioning of radioactivity between bronchoalveolar lavage fluid (BAL) and lung tissue was similar for HNE and PPE as were the half-lives, 45 and 51 min, respectively, for uncomplexed, enzymatically active HNE and PPE. In BAL there was preferential binding and inactivation of HNE by the hamsters' alpha-1-protease inhibitor (a-1-PI) whereas PPE was preferentially bound by alpha-2-macroglobulin (a-2-M). This was also observed in vitro when HNE and PPE were incubated with plasma from untreated hamsters. Nevertheless, when the sum of the elastase binding capacity of a-1-PI and a-2-M was considered, hamster plasma had similar binding capacities for HNE and PPE. It is known that the enzymatic activity of elastases is inhibited by formation of a stable complex with a-1-PI. On the other hand, elastases bound to a-2-M are protected against a-1-PI inhibition but can free themselves by proteolysis and exhibit elastolytic activity. Preferential inactivation of HNE by a-1-PI may be one mechanism that accounts for the lesser emphysema-inducing potency of HNE than of PPE. 相似文献
4.
5.
Established nonexpanding hematomas can be successfully treated with minimal morbidity using standard liposucstion techniques at the bedside or in an outpatient setting under local anesthesia. The authors presents a series of eight patients and discuss current concepts of dealing with this common and distressing surgical complication. 相似文献
6.
Stuart A. Batterman Alfred Franzblau Nanzheng Zhou 《International archives of occupational and environmental health》1996,68(4):268-274
Dermal exposures of methanol were administered in a clinical study designed to compare several biological indicators. Four
subjects were exposed in five exposure sessions of varying length. In each session, a sequence of measurements of methanol
concentrations in blood, breath, and headspace samples of air at exposed and unexposed skin were collected before and after
dermal exposures. Skin headspace samples, collected in gas sampling bags, were designed to reflect equilibrium skin: air partitioning.
At exposed skin, headspace samples were highly elevated for at least 8 h following exposure, indicating the presence of a
methanol reservoir in skin. After exposure, methanol concentrations at exposed skin showed a rapid initial decline, then a
slower first-order decrease. Methanol concentrations were clearly detectable in headspace samples at unexposed skin. Substantial
transfer from exposed skin occurred due to mechanical contact and washing. When transfer was restricted, surface concentrations
at unexposed skin were similar to levels in breath and were strongly correlated to methanol concentrations in blood. While
results are preliminary due to the small sample sizes and several unresolved experimental issues, the simple, rapid, and noninvasive
skin headspace measurements appear useful as a biological exposure indicator that clearly shows the presence and site of a
dermal exposure, and measurements at unexposed skin reflect concentrations in blood.
Received: 14 March 1995/Accepted: 3 November 1995 相似文献
7.
SG Berlin 《MedR Medizinrecht》2007,25(7):451-453
Abstrakt Bei der Bestimmung des Individualbudgets eines haus?rztlich t?tigen Vertragsarztes sind auch von diesem im Bemessungszeitraum
zul?ssig erbrachte sog. „KO-Leistungen“ zu berücksichtigen. Es ist irrelevant, wenn diese Leistungen nach Ende des Bemessungszeitraums
vom Leistungserbringer nicht mehr abgerechnet werden dürfen. (Leitsatz des Bearbeiters) 相似文献
8.
9.
10.
SG Saarland 《MedR Medizinrecht》2004,22(5):279-282
Ohne Zusammenfassung 相似文献