全文获取类型
收费全文 | 1692篇 |
免费 | 155篇 |
国内免费 | 22篇 |
专业分类
耳鼻咽喉 | 4篇 |
儿科学 | 138篇 |
妇产科学 | 23篇 |
基础医学 | 190篇 |
口腔科学 | 58篇 |
临床医学 | 161篇 |
内科学 | 312篇 |
皮肤病学 | 80篇 |
神经病学 | 107篇 |
特种医学 | 235篇 |
外科学 | 102篇 |
综合类 | 59篇 |
一般理论 | 1篇 |
预防医学 | 161篇 |
眼科学 | 8篇 |
药学 | 89篇 |
肿瘤学 | 141篇 |
出版年
2022年 | 18篇 |
2021年 | 16篇 |
2020年 | 12篇 |
2019年 | 16篇 |
2018年 | 27篇 |
2017年 | 24篇 |
2016年 | 18篇 |
2015年 | 25篇 |
2014年 | 33篇 |
2013年 | 48篇 |
2012年 | 57篇 |
2011年 | 57篇 |
2010年 | 45篇 |
2009年 | 38篇 |
2008年 | 51篇 |
2007年 | 53篇 |
2006年 | 40篇 |
2005年 | 50篇 |
2004年 | 47篇 |
2003年 | 46篇 |
2002年 | 39篇 |
2001年 | 49篇 |
2000年 | 48篇 |
1999年 | 49篇 |
1998年 | 56篇 |
1997年 | 54篇 |
1996年 | 51篇 |
1995年 | 49篇 |
1994年 | 37篇 |
1993年 | 36篇 |
1992年 | 30篇 |
1991年 | 35篇 |
1990年 | 35篇 |
1989年 | 54篇 |
1988年 | 49篇 |
1987年 | 62篇 |
1986年 | 39篇 |
1985年 | 30篇 |
1984年 | 23篇 |
1983年 | 17篇 |
1982年 | 18篇 |
1981年 | 26篇 |
1980年 | 22篇 |
1979年 | 18篇 |
1978年 | 17篇 |
1977年 | 13篇 |
1976年 | 26篇 |
1975年 | 18篇 |
1973年 | 15篇 |
1968年 | 11篇 |
排序方式: 共有1869条查询结果,搜索用时 15 毫秒
41.
Forsyth BW 《Child and adolescent psychiatric clinics of North America》2000,9(2):279-294
A new understanding of the pathophysiology of HIV infection and recent advances in the development of antiretroviral medications have led to dramatic changes in the ways that children and adolescents are affected by their disease and has provided new hope that did not exist in earlier years of the epidemic. These advances and the changes they have produced, however, have posed new difficulties and challenges to ensuring that each infected child and adolescent benefits maximally. Although there will likely continue to be pauses in the pace of progress, the future holds real promise, and the third decade of the AIDS epidemic should see new developments that will continue to improve the lives of those infected with the virus. 相似文献
42.
Marion Rutherford Kirsty Forsyth Karen McKenzie Iain McClure Aja Murray Deborah McCartney Linda Irvine Anne O’Hare 《Journal of autism and developmental disorders》2018,48(8):2677-2691
This study examined waiting times for diagnostic assessment of Autism Spectrum Disorder in 11 adult services, prior to and following the implementation of a 12 month change program. Methods to support change are reported and a multi-level modelling approach determined the effect of the change program on overall wait times. Results were statistically significant (b?=???0.25, t(136)?=???2.88, p?=?0.005). The average time individuals waited for diagnosis across all services reduced from 149.4 days prior to the change program and 119.5 days after it, with an average reduction of 29.9 days overall. This innovative intervention provides a promising framework for service improvement to reduce the wait for diagnostic assessment of ASD in adults across the range of spectrum presentations. 相似文献
43.
44.
45.
46.
47.
48.
49.
Liesbeth Ceelen Marusya Lieveld Ramses Forsyth Mathieu Vinken 《Hepatology International》2013,7(2):394-399
Hepatitis virus infections, mainly hepatitis B virus (HBV) and hepatitis C virus (HCV) infections, constitute a major problem for public health since they have a worldwide distribution and because they are associated with hepatocellular carcinoma and death. Current anti-HBV vaccines seem to be effective in the majority of people. However, an important issue waiting to be tackled nowadays is how to cure patients with chronic hepatitis B. Moreover, no vaccine is available today for the prevention of HCV infection. Therefore, the use of adequate in vitro infection systems is a prerequisite for the molecular understanding of the infection events of these viruses, which could result in the development of novel powerful therapeutics. In this respect, the HepaRG cell line exhibits a hepatocyte-like morphology and displays drug metabolism capacity similar to that of primary hepatocytes. HepaRG cells have yet been proven to be a useful tool in the study of viral infections, particularly for deciphering the mechanism of HBV entry into hepatocytes. 相似文献
50.
Reza Saeidi Pour DR MED DENT Otto Zuhr DR MED DENT Markus Hürzeler PROF DR MED DENT Otto Prandtner MDT Caroline Freitas Rafael Daniel Edelhoff PROF DR MED DENT Anja Liebermann DR MED DENT 《Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]》2017,29(2):93-101