全文获取类型
收费全文 | 1029篇 |
免费 | 77篇 |
国内免费 | 35篇 |
专业分类
耳鼻咽喉 | 7篇 |
儿科学 | 39篇 |
妇产科学 | 9篇 |
基础医学 | 144篇 |
口腔科学 | 18篇 |
临床医学 | 112篇 |
内科学 | 131篇 |
皮肤病学 | 12篇 |
神经病学 | 81篇 |
特种医学 | 174篇 |
外科学 | 107篇 |
综合类 | 25篇 |
预防医学 | 141篇 |
眼科学 | 38篇 |
药学 | 51篇 |
中国医学 | 1篇 |
肿瘤学 | 51篇 |
出版年
2022年 | 3篇 |
2021年 | 5篇 |
2020年 | 6篇 |
2019年 | 17篇 |
2018年 | 14篇 |
2017年 | 18篇 |
2016年 | 15篇 |
2015年 | 18篇 |
2014年 | 35篇 |
2013年 | 36篇 |
2012年 | 36篇 |
2011年 | 50篇 |
2010年 | 45篇 |
2009年 | 52篇 |
2008年 | 59篇 |
2007年 | 62篇 |
2006年 | 61篇 |
2005年 | 48篇 |
2004年 | 34篇 |
2003年 | 37篇 |
2002年 | 34篇 |
2001年 | 25篇 |
2000年 | 24篇 |
1999年 | 30篇 |
1998年 | 33篇 |
1997年 | 41篇 |
1996年 | 29篇 |
1995年 | 16篇 |
1994年 | 15篇 |
1993年 | 21篇 |
1992年 | 31篇 |
1991年 | 9篇 |
1990年 | 23篇 |
1989年 | 20篇 |
1988年 | 24篇 |
1987年 | 16篇 |
1986年 | 15篇 |
1985年 | 11篇 |
1984年 | 3篇 |
1983年 | 6篇 |
1982年 | 6篇 |
1981年 | 7篇 |
1980年 | 3篇 |
1979年 | 7篇 |
1978年 | 3篇 |
1977年 | 9篇 |
1976年 | 8篇 |
1975年 | 5篇 |
1971年 | 3篇 |
1969年 | 3篇 |
排序方式: 共有1141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.
3.
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
4.
5.
Validity of the 'Ten Questions' for screening serious childhood disability: results from urban Bangladesh 总被引:6,自引:0,他引:6
S S Zaman N Z Khan S Islam S Banu S Dixit P Shrout M Durkin 《International journal of epidemiology》1990,19(3):613-620
A survey of 2576 children aged two to nine years was carried out in Dhaka, Bangladesh, as part of a collaborative study to test the validity of a questionnaire (the Ten Questions) for screening severe childhood disabilities in community settings. Approximately 7% of the children were positive on the screen and this rate was slightly higher in boys than girls. The sensitivity, specificity and negative predictive value of the Ten Questions were perfect or nearly perfect for severe and moderate (serious) disabilities. The positive predictive value was only 22% for serious disabilities, but 70% of children classified as false positives were found to have mild disabilities or other conditions (such as ear infections) for which early detection and treatment could be beneficial. No major age or gender differences in the validity of the questionnaire were apparent, but this finding needs additional study and confirmation with studies based on larger samples. In general, the results indicate that the Ten Questions is a valid tool for screening serious disabilities in children and can potentially improve the efficiency of health services by reducing the number of children requiring attention from professionals. Future studies using the Ten Questions should foster greater attention to the dimensions of childhood disability as a public health problem in the less developed world. 相似文献
6.
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
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.
The impact of the Safe Kids/Healthy Neighborhoods Injury Prevention Program in Harlem, 1988 through 1991. 总被引:19,自引:6,他引:13 下载免费PDF全文
L L Davidson M S Durkin L Kuhn P O'Connor B Barlow M C Heagarty 《American journal of public health》1994,84(4):580-586
OBJECTIVES. This study evaluated the effectiveness of a community coalition to prevent severe injuries to children in Central Harlem, New York, NY. It was hypothesized that injury incidence rates would decline during the intervention (1989 through 1991) relative to preintervention years (1983 through 1988); that the decline would be greatest for the targeted age group (5 through 16 years) and targeted injury causes (traffic accidents, assaults, firearms, outdoor falls); and that the decline would occur in the intervention community rather than a control community. METHODS. Surveillance of injuries that result in hospitalization and/or death among children in the two communities has been under way since 1983. Data from this surveillance were used to test whether the incidence of severe injury declined during the intervention; other temporal variations were controlled by Poisson regression. RESULTS. The incidence of injury among school-aged children in central Harlem declined during the intervention. The decline was specific to the targeted age group and targeted causes. A nonspecific decline also occurred in the control community. CONCLUSIONS. The declining incidence rate in Central Harlem is consistent with a favorable program effect, but additional investigation of possible secular trend or spillover effects is needed. 相似文献
10.