全文获取类型
收费全文 | 2551篇 |
免费 | 312篇 |
国内免费 | 26篇 |
专业分类
耳鼻咽喉 | 14篇 |
儿科学 | 79篇 |
妇产科学 | 36篇 |
基础医学 | 223篇 |
口腔科学 | 117篇 |
临床医学 | 338篇 |
内科学 | 645篇 |
皮肤病学 | 97篇 |
神经病学 | 146篇 |
特种医学 | 335篇 |
外科学 | 297篇 |
综合类 | 41篇 |
预防医学 | 312篇 |
眼科学 | 28篇 |
药学 | 55篇 |
肿瘤学 | 126篇 |
出版年
2023年 | 52篇 |
2022年 | 19篇 |
2021年 | 17篇 |
2020年 | 48篇 |
2019年 | 26篇 |
2018年 | 60篇 |
2017年 | 36篇 |
2016年 | 51篇 |
2015年 | 62篇 |
2014年 | 110篇 |
2013年 | 140篇 |
2012年 | 56篇 |
2011年 | 94篇 |
2010年 | 89篇 |
2009年 | 111篇 |
2008年 | 88篇 |
2007年 | 105篇 |
2006年 | 90篇 |
2005年 | 70篇 |
2004年 | 55篇 |
2003年 | 41篇 |
2002年 | 41篇 |
2001年 | 72篇 |
2000年 | 69篇 |
1999年 | 52篇 |
1998年 | 76篇 |
1997年 | 102篇 |
1996年 | 90篇 |
1995年 | 61篇 |
1994年 | 70篇 |
1993年 | 60篇 |
1992年 | 35篇 |
1991年 | 29篇 |
1990年 | 49篇 |
1989年 | 62篇 |
1988年 | 48篇 |
1987年 | 50篇 |
1986年 | 47篇 |
1985年 | 52篇 |
1984年 | 27篇 |
1983年 | 30篇 |
1982年 | 37篇 |
1981年 | 40篇 |
1980年 | 24篇 |
1979年 | 26篇 |
1978年 | 24篇 |
1977年 | 25篇 |
1976年 | 24篇 |
1975年 | 16篇 |
1973年 | 13篇 |
排序方式: 共有2889条查询结果,搜索用时 15 毫秒
11.
Zusammenfassung Die Differenzialdiagnose schlafbezogener Atmungsstörungen (SBAS) erfolgt in Anlehnung an die durch die im Jahr 2005 von der American Academy of Sleep Medicine (AASM) neu aufgelegte Internationale Klassifikation von Schlafstörungen (ICSD-2). Die ICSD-2 teilt die derzeit bekannten Schlaf- und Aufwachstörungen in 8 Kategorien ein, die SBAS werden in Kategorie II aufgeführt. Die ICSD-2 ist kompatibel zu den international gebräuchlichen Systemen der Klassifikation von Krankheiten (ICD-9, ICD-10). Grundlage aller differenzialdiagnostischen Erwägungen stellt neben der ausführlichen Anamnese die Polysomnographie dar, ggf. ergänzt durch weiterführende internistische, neurologische, pädiatrische, Hals-Nasen-Ohren-ärztliche, Mund-Kiefer-Gesichts-chirurgische sowie neuropsychologische und neurophysiologische Untersuchungen. 相似文献
12.
Multiple genes encode nuclear factor 1-like proteins that bind to the promoter for 3-hydroxy-3-methylglutaryl-coenzyme A reductase. 总被引:37,自引:1,他引:36
下载免费PDF全文
![点击此处可从《Proceedings of the National Academy of Sciences of the United States of America》网站下载免费的PDF全文](/ch/ext_images/free.gif)
13.
Models of Parkinson's disease. 总被引:2,自引:0,他引:2
Parkinson's disease (PD) is a heterogenous disease likely to be caused by more than one specific aetiological factor. In rare familial cases of PD with similar clinical features to the idiopathic form of the disease, the underlying genetic cause has been identified. These PD-associated genes have been manipulated to create animal and cell culture models of the disease that have helped to further our understanding of the pathogenesis of PD, particularly concerning causes of the selective loss of dopaminergic neurons at the molecular level. In addition, these models will aid the future development of rational therapeutic strategies. This study briefly reviews toxin-induced models and the genetics of PD. It focuses on recently developed animal models of PD, as well as in vitro approaches to model the disease. 相似文献
14.
Cryotherapy was applied to 182 rectal cancer patients in the Department of General Surgery, University of Ulm, between 4/1982 and 4/1991. Recipients of this tumor freezing therapy were patients whose general condition was bad, patients with an advanced inoperable carcinoma, patients with tumor recurrence and patients refusing operation. Rectal carcinomas, mostly in an advanced stage, were usually freezed several times. Only 4 patients with general inoperability reached the survival time margin of 5 years. In 18 patients local tumor destruction was possible by application of cryotherapy. In 80% of cases disagreeable tumor symptoms like tenesma, mucous discharge and oozing hemorrhages could be reduced or completely removed. Perianal pain and intense tumor bleeding could be relieved temporarily or definitely in only 50% of patients. An artificial anus could be avoided in 80% of cases by local tumor destruction/reduction or arrest of tumor growth. The mean survival time of patients with tumor recidivation was 11 months after onset of the recurrence. Tumor progression, incontinence and iatrogenic rectal perforation made an artificial anus necessary in 14 patients. 相似文献
15.
16.
17.
18.
MD MS Gregory L Larkin PhD John Moskop MD FACEP Arthur Sanders MD JD FACEP Arthur Derse 《Annals of emergency medicine》1994,24(6)
Confidentiality is a promise rooted in tradition, law andmedical ethics. Emergency physicians treat a variety of patients to whom confidentiality is of vital importance: employees, celebrities, victims of violence or disaster, minors, students, criminals, drug abusers, and patients with STDs. EDs should develop methods of ensuring confidentiality for all patients.34Although confidentiality is an important principle thatshould be respected and guarded, it is not absolute. Various laws mandate disclosure of certain patient information; in addition, an overriding moral duty may occasionally require, a breach of confidentiality. As Beauchamp and Childress noted, “the therapeutic role may sometimes have to yield to ones role as citizen and as protector of the interests of others”.19 In general, however, circumstances requiring a breach of confidentiality are rare. 相似文献
19.
20.