全文获取类型
收费全文 | 1975245篇 |
免费 | 149343篇 |
国内免费 | 4297篇 |
专业分类
耳鼻咽喉 | 26066篇 |
儿科学 | 64987篇 |
妇产科学 | 54679篇 |
基础医学 | 289874篇 |
口腔科学 | 54255篇 |
临床医学 | 178251篇 |
内科学 | 387410篇 |
皮肤病学 | 45903篇 |
神经病学 | 154892篇 |
特种医学 | 74272篇 |
外国民族医学 | 531篇 |
外科学 | 294167篇 |
综合类 | 44732篇 |
现状与发展 | 5篇 |
一般理论 | 618篇 |
预防医学 | 151938篇 |
眼科学 | 45182篇 |
药学 | 142877篇 |
3篇 | |
中国医学 | 5270篇 |
肿瘤学 | 112973篇 |
出版年
2019年 | 15720篇 |
2018年 | 22408篇 |
2017年 | 17094篇 |
2016年 | 19370篇 |
2015年 | 21567篇 |
2014年 | 30255篇 |
2013年 | 45047篇 |
2012年 | 60725篇 |
2011年 | 64389篇 |
2010年 | 37968篇 |
2009年 | 36145篇 |
2008年 | 59576篇 |
2007年 | 63341篇 |
2006年 | 64323篇 |
2005年 | 61667篇 |
2004年 | 59434篇 |
2003年 | 56480篇 |
2002年 | 54670篇 |
2001年 | 99834篇 |
2000年 | 101952篇 |
1999年 | 84377篇 |
1998年 | 23175篇 |
1997年 | 20585篇 |
1996年 | 20826篇 |
1995年 | 19795篇 |
1994年 | 18015篇 |
1993年 | 16853篇 |
1992年 | 63963篇 |
1991年 | 61771篇 |
1990年 | 59638篇 |
1989年 | 57502篇 |
1988年 | 52530篇 |
1987年 | 51245篇 |
1986年 | 48182篇 |
1985年 | 45692篇 |
1984年 | 34366篇 |
1983年 | 28963篇 |
1982年 | 17130篇 |
1981年 | 15172篇 |
1979年 | 30516篇 |
1978年 | 21468篇 |
1977年 | 17965篇 |
1976年 | 17098篇 |
1975年 | 18069篇 |
1974年 | 21453篇 |
1973年 | 20670篇 |
1972年 | 19384篇 |
1971年 | 17745篇 |
1970年 | 16947篇 |
1969年 | 15602篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
993.
Endovascular stent-graft treatment of type A dissection: case report and review of literature. 总被引:2,自引:0,他引:2
S Senay C Alhan F Toraman H Karabulut S Dagdelen H Cagil 《European journal of vascular and endovascular surgery》2007,34(4):457-460
We report a successful endovascular stent-graft treatment of a patient with type A dissection with primary entry tear at the ascending aorta. Simultaneous coronary stenting was performed. A literature review was performed and the possible use of endovascular treatment for ascending aortic dissections is discussed. 相似文献
994.
996.
Trauma und Berufskrankheit - Eine einheitliche Behandlungsstrategie thorakolumbaler Wirbelfrakturen hat sich lange Zeit nicht etablieren können. Heute ist bei stabilen Frakturen mit intakter... 相似文献
997.
998.
Distal humeral fractures are problematic both in children and in adults. While in children these fractures are very common and most of them have an extraarticular location, in adults their incidence is much lower and they more often compromise the joint. Good results cannot be achieved without due consideration for the complex anatomy of the elbow joint, the quality of the bone, the concomitant soft tissue lesions and the biomechanical aspects of the injury, to allow selection of appropriate therapy and a correctly structured aftertreatment. The soft tissue injuries that are frequently involved and the high rate of intra- and postoperative complications need particular attention. This paper reviews the epidemiology, the current standards in diagnosis and therapy, the possible complications and the results that can be expected in patients with fractures of this type. 相似文献
999.
Background It is estimated that skin cancers cost $33 million per annum to the New Zealand healthcare system. Basal cell carcinoma and squamous cell carcinoma are the commonest types of non melanoma skin cancers (NMSCs). Anecdotal evidence indicates that there has been a doubling in the incidence of NMSCs in New Zealand over the last decade. Because of the high incidence mandatory reporting of NMSCs to the National Cancer Registry is not required. This lack of accurate data has led to poor health care policies and strategies including funding and workforce planning. Aims The aims of this study are to (1) present the latest statistics on NMSCs in New Zealand, including the incidence across different regions over the last decade, patient demographics, anatomic distribution of NMSCs, incidence and sites of metastasis, and disease‐specific survival; to (2) the histopathology of NMSCs, including surgical margins, histologic grade, and perineural, lymphatic, and vascular invasion; and (3) the relative role of different faculties treating NMSCs. Method This project has been approved by the multi‐centre ethics committee. A retrospective review was conducted from patients’ histology records from public and private pathology laboratories within defined catchment areas. Criterion for analysis is a confirmed diagnosis of NMSC treated surgically. A Microsoft Access database is created that will facilitate subsequent data retrieval and analysis. Results and Conclusion It is hoped that this up‐to‐date data will form the framework for the development of sound and sustainable healthcare policies of management of NMSCs including management strategies and workforce planning, and research direction on this common disease. 相似文献
1000.