全文获取类型
收费全文 | 663篇 |
免费 | 41篇 |
国内免费 | 7篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 18篇 |
妇产科学 | 20篇 |
基础医学 | 56篇 |
口腔科学 | 4篇 |
临床医学 | 60篇 |
内科学 | 250篇 |
皮肤病学 | 2篇 |
神经病学 | 16篇 |
特种医学 | 90篇 |
外科学 | 57篇 |
综合类 | 30篇 |
预防医学 | 32篇 |
眼科学 | 7篇 |
药学 | 24篇 |
肿瘤学 | 44篇 |
出版年
2021年 | 6篇 |
2020年 | 7篇 |
2019年 | 7篇 |
2017年 | 14篇 |
2016年 | 10篇 |
2015年 | 10篇 |
2014年 | 10篇 |
2013年 | 16篇 |
2012年 | 33篇 |
2011年 | 21篇 |
2010年 | 25篇 |
2009年 | 18篇 |
2008年 | 23篇 |
2007年 | 37篇 |
2006年 | 31篇 |
2005年 | 29篇 |
2004年 | 29篇 |
2003年 | 26篇 |
2002年 | 14篇 |
2001年 | 15篇 |
2000年 | 17篇 |
1999年 | 10篇 |
1998年 | 9篇 |
1997年 | 8篇 |
1996年 | 10篇 |
1995年 | 6篇 |
1994年 | 18篇 |
1993年 | 13篇 |
1992年 | 8篇 |
1991年 | 6篇 |
1990年 | 7篇 |
1989年 | 11篇 |
1988年 | 12篇 |
1987年 | 24篇 |
1986年 | 15篇 |
1985年 | 10篇 |
1984年 | 9篇 |
1983年 | 9篇 |
1982年 | 7篇 |
1981年 | 9篇 |
1980年 | 8篇 |
1978年 | 6篇 |
1974年 | 12篇 |
1973年 | 9篇 |
1972年 | 4篇 |
1971年 | 7篇 |
1970年 | 6篇 |
1969年 | 10篇 |
1968年 | 7篇 |
1967年 | 6篇 |
排序方式: 共有711条查询结果,搜索用时 15 毫秒
151.
152.
153.
154.
Leo Stuckey 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》1910,105(5-6):545-558
Ohne Zusammenfassung 相似文献
155.
156.
157.
We tested the combination of cisplatin, amsacrine, and mitoguazone as salvage treatment for patients with advanced unfavorable non-Hodgkin's lymphomas. An objective response rate of 43% was noted in 30 evaluable patients, but all responses were partial and the median duration of response was only 2 months. Toxicity included life-threatening and fatal leukopenia and severe gastrointestinal intolerance. We conclude that this combination chemotherapy regimen is not a valuable salvage treatment for patients with non-Hodgkin's lymphoma. 相似文献
158.
Extra-contractual referrals (ECRs) can be a cause of considerable anxiety to purchasing authorities, mainly because of their potential to generate unexpected expenditure. But ECRs can also be used as a tool for monitoring the demand for, and quality of, clinical services. ECRs were studied in the Darlington Health Authority district using a variety of methods including inter-disciplinary meetings, a series of interviews with local GPs, and a questionnaire to general practitioners on 230 consecutive ECRs. The methods and results of the questionnaire study are presented. The commonest reasons for making ECRs included the mistaken belief that a contract existed with the ECR provider, patient dissatisfaction with the local provider, and referral to benefit from shorter waiting lists. ECRs for bone-mass densitometry, orthopaedics, and ear nose and throat services were over-represented. Questionnaire results were validated by comparison with an interview study of all GPs in the district. We conclude that trends in ECRs can be monitored as a convenient ‘early warning system’ to alert purchasing authorities to changes in demand or perceived problems with local provider units. ECR data must be interpreted in the context of further local background information from sources such as GPs and public health physicians. In the case of Darlington, scrutiny of ECRs has led to changes in services and contracts. 相似文献
159.
160.
Cardiac herniation with volvulus is a catastrophic complication of right intrapericardial pneumonectomy. This case illustrates diagnostic radiographic findings that may be essential for early diagnosis and survival, since the clinical signs are nonspecific. 相似文献