全文获取类型
收费全文 | 21108篇 |
免费 | 1539篇 |
国内免费 | 131篇 |
专业分类
耳鼻咽喉 | 124篇 |
儿科学 | 671篇 |
妇产科学 | 693篇 |
基础医学 | 2757篇 |
口腔科学 | 368篇 |
临床医学 | 2579篇 |
内科学 | 3697篇 |
皮肤病学 | 361篇 |
神经病学 | 1780篇 |
特种医学 | 632篇 |
外科学 | 3139篇 |
综合类 | 739篇 |
一般理论 | 43篇 |
预防医学 | 1671篇 |
眼科学 | 514篇 |
药学 | 1220篇 |
1篇 | |
中国医学 | 82篇 |
肿瘤学 | 1707篇 |
出版年
2023年 | 176篇 |
2022年 | 271篇 |
2021年 | 511篇 |
2020年 | 328篇 |
2019年 | 485篇 |
2018年 | 534篇 |
2017年 | 412篇 |
2016年 | 436篇 |
2015年 | 537篇 |
2014年 | 708篇 |
2013年 | 911篇 |
2012年 | 1364篇 |
2011年 | 1463篇 |
2010年 | 855篇 |
2009年 | 738篇 |
2008年 | 1129篇 |
2007年 | 1187篇 |
2006年 | 1182篇 |
2005年 | 1179篇 |
2004年 | 1126篇 |
2003年 | 1000篇 |
2002年 | 962篇 |
2001年 | 639篇 |
2000年 | 510篇 |
1999年 | 460篇 |
1998年 | 213篇 |
1997年 | 198篇 |
1996年 | 161篇 |
1995年 | 147篇 |
1994年 | 114篇 |
1993年 | 99篇 |
1992年 | 241篇 |
1991年 | 235篇 |
1990年 | 239篇 |
1989年 | 224篇 |
1988年 | 189篇 |
1987年 | 199篇 |
1986年 | 180篇 |
1985年 | 152篇 |
1984年 | 115篇 |
1983年 | 96篇 |
1982年 | 62篇 |
1981年 | 72篇 |
1980年 | 67篇 |
1979年 | 94篇 |
1978年 | 72篇 |
1977年 | 58篇 |
1976年 | 48篇 |
1975年 | 50篇 |
1974年 | 43篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
12.
Joyce J. Fitzpatrick Sheila Ryan DeWitt Baldwin Roger Bulger Jean Johnson-Pawlson Christopher McLaughlin Maureen Kelley Leopold Selketr Bernardine Lacey Charlene Hanson Robin Harvan Patricia Hinton Walker David Sluyter Mary Joan Ladden Neal Vanselow 《Journal of Midwifery & Women's Health》1998,43(1):61-65
In 1995, the National League for Nursing commissioned a Panel on Interdisciplinary/Transdisciplinary Education. The focus of the Panel's work was to examine educational issues that transcend the health professions and to make recommendations for future implementation of an interdisciplinary approach to addressing them. This article is being simultaneously published by several professional journals. The goal is to seek as much feedback as possible. 相似文献
13.
A randomly selected sample of 662 12-year-old Hong Kong children, 529 of whom were Southern Chinese and 133 non-Chinese, was clinically examined for dental caries. The DMFT values were 2.76 and 1.66 for the Chinese and non-Chinese children, respectively. The D component for the Chinese children was 2.12, while for the non-Chinese children it was only 0.45. Approximately 24.0% of the Chinese children had attended the dentist because they were in pain. Only 3.8% of the Chinese children had sought orthodontic or preventive treatment, compared with 24.0% of the non-Chinese children. Although these findings indicate the caries experience to be well below the FDI/WHO global goal for the year 2000, there is a great need to increase the level of dental awareness among Chinese children. 相似文献
14.
Elizabeth P. Eustis-Turf Joyce A. Benjamins Maurice J. Lefford 《Journal of neuroimmunology》1986,10(4):313-330
Sera from 43 leprosy patients were tested for antibodies that bound to normal human nerve. Thirty-eight percent showed positive staining as demonstrated by indirect immunofluorescence. Only 1 out of 30 control sera tested displayed similar staining. Western blots of myelin and neural intermediate filament (IF) proteins were tested with patient sera. Two of the anti-neural antibody (ANeAb)-positive leprosy sera bound to the P0 protein of PNS myelin. All 17 ANeAb-positive leprosy sera displayed 2 or more bands in the molecular weight range of Mr 45 000-55 000, when tested against IF proteins. One explanation for these findings is that leprosy patients produce antibodies to intermediate filament (IF) proteins released subsequent to the bacterial invasion of the peripheral nerves. The importance of these autoantibodies in the pathogenesis of leprosy is discussed. 相似文献
15.
16.
Joseph I. Sirven Barbara L. Malamut Joyce D. Liporace Michael J. O'Connor Michael R. Sperling Michael J. O'Connor 《Annals of neurology》1997,42(6):873-878
We determined how noninvasive presurgical data relate to prognosis after temporal lobectomy in patients with independent bilateral temporal lobe (IBTL) complex partial seizures on the intracranial electroencephalogram (EEG). Between 1986 and 1994, 28 patients had IBTL seizures on intracranial EEG. Fifteen of these 28 patients underwent temporal lobectomy and 13 were not offered surgery. Of the 15 patients who had surgery, 10 patients became seizure-free. Magnetic resonance imaging (MRI) and the Wada test were the only variables associated with a seizure-free outcome. Seven of 10 seizure-free patients had a lateralized Wada result or the presence of unilateral hippocampal sclerosis, whereas none of the patients with persistent seizures had either of these findings. Variables not found to be predictive of a seizure-free outcome included location of scalp interictal spikes, degree of seizure-onset laterality, presence of early epilepsy risk factor, duration of epilepsy, and full-scale intelligence quotient. We conclude that MRI and the Wada test provide information of prognostic value in patients with bilateral temporal seizures independent of intracranial EEG data. 相似文献
17.
18.
19.
20.
The rapid movement of information technologies into health care organizations has raised managerial concern regarding the capability of today's institutions to satisfactorily manage their introduction. Indeed, several health care institutions have consumed huge amounts of money and frustrated countless people in wasted information systems implementation efforts. Unfortunately, there are no easy answers as to why so many health informatics projects are not more successful. In this light, the aim of this study is to provide a deeper understanding of how clinical information systems are being implemented by emphasizing research efforts on the dynamic nature of the process, that is, the “how” and “why” of what happened. Using a case study methodology, we examined the implementation of a patient charting system in the Burn Center of a large, not-for-profit, teaching hospital. Based on an in-depth examination of this implementation, several insights are offered to those who have responsibility for managing complex and risky clinical information system implementation projects. 相似文献