全文获取类型
收费全文 | 717篇 |
免费 | 38篇 |
国内免费 | 12篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 51篇 |
妇产科学 | 4篇 |
基础医学 | 67篇 |
口腔科学 | 25篇 |
临床医学 | 41篇 |
内科学 | 210篇 |
皮肤病学 | 8篇 |
神经病学 | 22篇 |
特种医学 | 83篇 |
外科学 | 77篇 |
综合类 | 77篇 |
预防医学 | 37篇 |
眼科学 | 10篇 |
药学 | 31篇 |
中国医学 | 1篇 |
肿瘤学 | 21篇 |
出版年
2023年 | 3篇 |
2022年 | 4篇 |
2021年 | 7篇 |
2020年 | 8篇 |
2019年 | 4篇 |
2018年 | 7篇 |
2017年 | 9篇 |
2016年 | 14篇 |
2015年 | 20篇 |
2014年 | 19篇 |
2013年 | 22篇 |
2012年 | 17篇 |
2011年 | 21篇 |
2010年 | 34篇 |
2009年 | 36篇 |
2008年 | 27篇 |
2007年 | 34篇 |
2006年 | 40篇 |
2005年 | 25篇 |
2004年 | 18篇 |
2003年 | 7篇 |
2002年 | 23篇 |
2001年 | 19篇 |
2000年 | 22篇 |
1999年 | 18篇 |
1998年 | 44篇 |
1997年 | 31篇 |
1996年 | 41篇 |
1995年 | 17篇 |
1994年 | 20篇 |
1993年 | 23篇 |
1992年 | 4篇 |
1991年 | 8篇 |
1990年 | 2篇 |
1989年 | 10篇 |
1988年 | 26篇 |
1987年 | 10篇 |
1986年 | 9篇 |
1985年 | 19篇 |
1984年 | 8篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1981年 | 3篇 |
1980年 | 3篇 |
1977年 | 3篇 |
1976年 | 7篇 |
1975年 | 3篇 |
1974年 | 2篇 |
1968年 | 2篇 |
1932年 | 1篇 |
排序方式: 共有767条查询结果,搜索用时 15 毫秒
1.
2.
R. Fock H. Bergmann H. Bußmann G. Fell E.-J. Finke U. Koch M. Niedrig M. Peters D. Scholz A. Wirtz 《Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz》2001,44(10):969-980
The World Health Organization (WHO) and the majority of the influenza experts assume that an influenza pandemic might reemerge again at any time. Therefore WHO has called upon all member states to set up a national pandemic preparedness plan. For Germany such a plan is long overdue. In order to gain as much time as possible early identification of the pandemic virus is of highest priority. Furthermore progression of a pandemic is influenced by the time needed to develop a subtype specific vaccine as well as by the vaccines availability. However, in case of a pandemic a shortage of vaccines and prophylactic pharmaceuticals cannot be avoided. Therefore, decisions have to be made in order to establish priorities concerning the vaccination and the prophylactic and/or therapeutic antimicrobial treatment of selected sub-populations. There is also a need to lay down measures ensuring the distribution of vaccines and antiviral drugs, adequate health care and ambulance service, and the organization of dignified funerals of the deceased. It is also necessary to enter into an early agreement with vaccine manufacturers on a guaranteed supply of respective batches of vaccine doses. In addition procedures should be established to allow an increase in vaccine production in case of a pandemic. There is also a need for early agreements with the manufacturers of antiviral agents and for a decision concerning the establishment of a national stockpile to guarantee an adequate supply. Some measures must already be taken in the inter-pandemic period. Those are: enhancement of surveillance and research, development of new vaccines and new methods of vaccine production, licensing of new vaccines in case of a pandemic and establishment of a national influenza committee. Problems like the effectiveness of antiepidemic measures, such as immigration control and the closing of schools, must be solved in advance of a pandemic. 相似文献
3.
4.
5.
6.
7.
8.
9.
10.