全文获取类型
收费全文 | 45363篇 |
免费 | 5048篇 |
国内免费 | 72篇 |
专业分类
耳鼻咽喉 | 325篇 |
儿科学 | 1327篇 |
妇产科学 | 902篇 |
基础医学 | 6247篇 |
口腔科学 | 1227篇 |
临床医学 | 5667篇 |
内科学 | 8969篇 |
皮肤病学 | 703篇 |
神经病学 | 3632篇 |
特种医学 | 1966篇 |
外国民族医学 | 1篇 |
外科学 | 5979篇 |
综合类 | 1185篇 |
一般理论 | 26篇 |
预防医学 | 5262篇 |
眼科学 | 848篇 |
药学 | 3790篇 |
中国医学 | 83篇 |
肿瘤学 | 2344篇 |
出版年
2021年 | 587篇 |
2020年 | 357篇 |
2019年 | 649篇 |
2018年 | 736篇 |
2017年 | 521篇 |
2016年 | 617篇 |
2015年 | 749篇 |
2014年 | 952篇 |
2013年 | 1378篇 |
2012年 | 1998篇 |
2011年 | 2009篇 |
2010年 | 1143篇 |
2009年 | 1114篇 |
2008年 | 1917篇 |
2007年 | 2002篇 |
2006年 | 1971篇 |
2005年 | 1892篇 |
2004年 | 1739篇 |
2003年 | 1659篇 |
2002年 | 1621篇 |
2001年 | 1544篇 |
2000年 | 1473篇 |
1999年 | 1468篇 |
1998年 | 601篇 |
1997年 | 497篇 |
1996年 | 497篇 |
1995年 | 503篇 |
1994年 | 442篇 |
1993年 | 484篇 |
1992年 | 1209篇 |
1991年 | 1131篇 |
1990年 | 1080篇 |
1989年 | 1060篇 |
1988年 | 983篇 |
1987年 | 974篇 |
1986年 | 987篇 |
1985年 | 902篇 |
1984年 | 778篇 |
1983年 | 640篇 |
1982年 | 433篇 |
1981年 | 355篇 |
1979年 | 587篇 |
1978年 | 487篇 |
1977年 | 373篇 |
1976年 | 386篇 |
1974年 | 432篇 |
1973年 | 400篇 |
1972年 | 387篇 |
1971年 | 349篇 |
1969年 | 358篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Marjorie Shaw Phillips Roger L Williams 《American journal of health-system pharmacy》2006,63(2):139-142
PURPOSE: Recommendations of the interdisciplinary Safe Medication Use Expert Committee of the United States Pharmacopeia (USP) to assist health care professionals, manufacturers, and organizations in handling neuromuscular blocking agents (NMBAs) safely and effectively are discussed. SUMMARY: Review and analysis of the USP Medication Errors Reporting Program and MEDMARX program databases showed a continuing risk of patient harm or death due to errors with NMBAs. Medication errors involving wrong concentrations, wrong doses, wrong drugs, look-alike packaging, and sound-alike names, combined with lack of monitoring and communication, have been associated with the use of NMBAs in health care institutions. Serious adverse events occur when NMBAs are used without adequate safeguards. Recommendations for improving safety were developed through review and discussion of root causes and areas of concern with these medications. CONCLUSION: Medical errors with NMBAs continue to result in patient morbidity and mortality. Increased awareness and action on the part of all parties involved are needed to improve the safety of this class of medications. 相似文献
3.
G Williams 《World health forum》1988,9(2):185-199
This article explains how the concept of health for all developed within the context of the history of the World Health Organization (WHO). By the early 1970s a new idea was taking shape in WHO. Medical services were failing to reach vast numbers. Health would have to emerge from the people themselves. In the heat of discussion the new strategy was clarified and given a name--primary health care (PHC). An ambitious target was set for it--no less than health for all by the year 2000. It was decided that the community itself had to be involved in planning and implementing its own health care. A new type of health worker was called for, chosen by the people from among themselves and responsible to the community but supported by the entire health system. In virtually all countries, the emphasis on curative care would have to be balanced by an equal emphasis on prevention. Almost 90% of WHO's Member States were prepared to share with one another detailed information about the problems facing their health systems. Industrial countries were beginning to realize that sophisticated medical technology was no guarantee of good health and that health for all through PHC offered an alternative. Millions of health workers have been trained, extending services to low-income groups that had no access to modern health care. Among health professionals, lack of understanding of the PHC concept and insufficient concern for social equity remain the principal constraints. Another problem is that expenditure on health care tends to be viewed as a drain on scarce resources rather than as an investment in the nation's future. The mommentum of health for all can be sustained only by governments implementing at home the policies they have collectively agreed on at The World Health Assembly in Geneva. 相似文献
4.
5.
6.
Andrew Williams 《The British journal of general practice》2002,52(484):940-941
7.
The Italian experience and its implications 总被引:4,自引:0,他引:4
8.
Endoscopic balloon dilatation as a therapeutic option in the management of intestinal strictures resulting from Crohn's disease 总被引:5,自引:0,他引:5
Endoscopic balloon dilatation was undertaken in seven patients who presented with obstructive symptoms resulting from Crohn's disease. Five patients had strictures from recurrent disease at the site of an ileotransverse anastomosis, one had duodenal stenosis and one a colonic stricture. The procedures were performed under intravenous sedation on one to four occasions (median 2) and were uncomplicated. Sustained improvement over an 18-24-month follow-up period was achieved in five patients, but dilatation was unsuccessful in two cases. Endoscopic balloon dilatation is a safe and effective option in selected patients with intestinal strictures resulting from Crohn's disease and may overcome the need for surgery. 相似文献
9.
Ronald Martin Jaime Williams Thomas Hadjistavropoulos Heather D Hadjistavropoulos Michael MacLean 《Revue canadienne de recherche en sciences infirmières》2005,37(2):142-164
The literature suggests that pain in the elderly, especially among seniors with dementia, is under-assessed and under-treated.This qualitative study solicited the perspectives of seniors, front-line nursing staff, nursing-home administrators, and informal caregivers of seniors with dementia on the current status of pain assessment and management. The views of these participants complement the research findings reported in the literature. While some of their explanations and potential solutions concerning under-treatment of pain in seniors echo views that have been presented in the literature, the participants also pointed to factors and avenues that have been given less formal consideration (e.g., systemic barriers to effective assessment and treatment of pain).They also highlighted the need for pain-control strategies beyond medication. The implications of these findings are discussed. 相似文献
10.