全文获取类型
收费全文 | 19460篇 |
免费 | 5277篇 |
国内免费 | 68篇 |
专业分类
耳鼻咽喉 | 65篇 |
儿科学 | 418篇 |
妇产科学 | 1635篇 |
基础医学 | 223篇 |
口腔科学 | 133篇 |
临床医学 | 15334篇 |
内科学 | 2264篇 |
皮肤病学 | 68篇 |
神经病学 | 671篇 |
特种医学 | 199篇 |
外科学 | 1093篇 |
综合类 | 42篇 |
预防医学 | 1827篇 |
眼科学 | 99篇 |
药学 | 91篇 |
中国医学 | 1篇 |
肿瘤学 | 642篇 |
出版年
2024年 | 76篇 |
2023年 | 797篇 |
2022年 | 93篇 |
2021年 | 250篇 |
2020年 | 628篇 |
2019年 | 216篇 |
2018年 | 1109篇 |
2017年 | 1375篇 |
2016年 | 1423篇 |
2015年 | 1524篇 |
2014年 | 1561篇 |
2013年 | 1797篇 |
2012年 | 463篇 |
2011年 | 729篇 |
2010年 | 1059篇 |
2009年 | 1357篇 |
2008年 | 680篇 |
2007年 | 594篇 |
2006年 | 617篇 |
2005年 | 495篇 |
2004年 | 458篇 |
2003年 | 399篇 |
2002年 | 345篇 |
2001年 | 475篇 |
2000年 | 275篇 |
1999年 | 423篇 |
1998年 | 584篇 |
1997年 | 700篇 |
1996年 | 639篇 |
1995年 | 563篇 |
1994年 | 412篇 |
1993年 | 333篇 |
1992年 | 255篇 |
1991年 | 239篇 |
1990年 | 233篇 |
1989年 | 183篇 |
1988年 | 138篇 |
1987年 | 131篇 |
1986年 | 123篇 |
1985年 | 142篇 |
1984年 | 103篇 |
1983年 | 99篇 |
1982年 | 81篇 |
1981年 | 90篇 |
1980年 | 50篇 |
1979年 | 76篇 |
1978年 | 58篇 |
1977年 | 65篇 |
1976年 | 65篇 |
1972年 | 81篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
Kann Holmén RN Doctoral Student Kjerstin Ericsson RN PhD Researcher Lars Andersson DMSc Associate Professor Bengt Winblad MD Professor 《Journal of advanced nursing》1992,17(1):43-51
The purpose was to investigate experienced loneliness among the elderly. The material included 1725 people, aged 75 and over. The study describes relationships between loneliness, social network, cognitive function and health. Thirty-five per cent experienced loneliness, and a higher percentage was found among women. A gradual increase in loneliness was found up to the age of 90, after which a levelling was found. Elderly persons living together with a partner experienced less loneliness. There were no significant differences between those with and without children. Ten per cent reported not having any friends and, of these, one out of two experienced loneliness. A high frequency of experienced loneliness was found among elderly people with reduced cognitive function. Subjectively experienced bad health and loneliness were strongly related to each other, i.e. a person who experienced loneliness did usually not feel completely healthy. 相似文献
72.
Louise Rose MN Adult Ed Cert BN ICU Cert Dip Nurs Marie F. Gerdtz RN BN AE Cert GDAET PhD 《Australasian emergency nursing journal : AENJ》2007,10(1):26-29
The use of mechanical ventilation in the Emergency Department requires adequate resources in order to maintain patient safety and avoid potential risks. Moreover, developments in technology require increased knowledge of mechanical ventilation techniques to address the complexity of decision-making involved. Organisational issues and system factors have the potential to negatively impact on the ability of the emergency service to provide optimum care to patients receiving mechanical ventilation. These issues include staffing and skill-mix, demand on emergency services, role-delineation, scope of practice, and current mechanisms for monitoring of quality and safety. Furthermore, in response to advances in ventilator technology, current education programs for both nursing and medical staff require review to ensure that they provide comprehensive information about the types of ventilation techniques now available and the relative risks and benefits associated with their application.This article is the second in a two-part series and explores the educational and organisational factors that impact upon safety and quality of care delivered to patients receiving mechanical ventilation in the emergency department. Recommendations for future policy development, curriculum review and reporting mechanisms to support further research in the application of mechanical ventilation in the emergency department are made. 相似文献
73.
74.
M.M. Bialoskurski MA RN RM C.L. Cox MSc PhD RN & R.D. Wiggins PhD 《Journal of advanced nursing》2002,37(1):62-69
AIM: The aim of this study was to investigate the nature and organization of maternal needs and priorities in a neonatal unit. BACKGROUND: The relationship between maternal needs and priorities appears to be an under studied area in neonatal nursing. METHODS: A quantitative survey was carried out based on 209 mothers with premature infants. Two self-assessment schedules were used: critical care maternal needs inventory (J. Leske, Heart and Lung 15, 27-42) and a ranking scale. The data were analysed with multivariate analysis. FINDINGS: Data analysis revealed clear priorities in maternal needs. In particular the need for accurate infant related information was a priority for 93% of the mothers. Good communication practices with professionals were also valued. The mothers displayed altruistic behaviour, and self-related needs took second place. It is proposed that maternal needs demonstrate a hierarchical organization. CONCLUSION: It is important for nurses to consider the individual needs of the mothers, simply because the satisfaction of these needs is essential for maternal well-being. 相似文献
75.
Kelley Withy MD MS ; January May Andaya; Judith S. Mikami RN MPH ; Seiji Yamada MD MPH 《The Journal of rural health》2007,23(1):84-88
CONTEXT: Health disparities between rural and urban communities are well documented. There are many suggested causes and many proposed solutions but no one-size-fits-all answer. The most successful community interventions have been introduced by communities themselves. However, before communities invest in such interventions, each group must identify and prioritize their needs. PURPOSE: This article describes the Hoshin facilitation method as a practical option assisting communities in assessing their needs and gaining consensus for future steps. METHODS: Thirty-four meetings were held in 11 rural communities in Hawaii using the Hoshin process to identify factors that impact rural health. Themes were identified by constant comparative analysis and thematic frequency described. Commonality of responses between communities was examined. Informal feedback was collected from meeting participants. FINDINGS: There was a great deal of commonality between community responses, with economic factors, drug use, lack of community leadership, lack of health care services and access to services, lack of healthy activities for youth, and poor public education being the most common issues noted. Group involvement in the meetings was high, and the facilitation method received positive feedback from participants. CONCLUSIONS: The Hoshin facilitation method is a very useful tool to help communities rapidly identify and prioritize areas for programmatic attention. 相似文献
76.
77.
78.
79.
Patrick Callaghan RN BSc MSc Cheung Siu Shan RN BN Lau Suk Yu RN BN Lo Wai Ching RN BN Tsui Lai Kwan RN BN 《Journal of advanced nursing》1997,26(1):33-40
This study investigated whether previous contact with mental illness affected the attitudes to mental illness (AMI) of general student nurses in Hong Kong — the contact hypothesis. We employed a quasi-experimental design. We compared the attitudes to mental illness of students who had previous contact with mental illness through having taken a psychiatric secondment with those who had not taken a psychiatric secondment. Also, we compared the AMI of: students who had taken other courses related to mental illness with those who had not; those who had a family history of mental illness with those who had not; and those who lived with a mentally ill relative with those who did not. We found that previous contact with mental illness had no significant effect on the attitudes to mental illness of the students. In other words our findings do not support the contact hypothesis. Our sample expressed positive general attitudes to mental illness when presented with general issues about mental illness. However, their attitudes were less positive when presented with specific issues about mental illness that might impinge upon their daily lives. We discuss the implications of these findings for mental health nursing practice, education and research. 相似文献
80.
Kären M. Landenburger RN PhD 《Journal of obstetric, gynecologic, and neonatal nursing : JOGNN / NAACOG》1998,27(6):700-706
The process of leaving an abusive relationship involves repeated attempts at leaving and returning and is influenced by a number of individual characteristics and contextual factors. Leaving is an initial step in recovering from an abusive relationship, a process that also includes struggling for survival, grieving, and searching for the meaning of the experience. Nurses must recognize that recovering from an abusive relationship can be a lifelong process, and health care providers have unique opportunities to support a woman's recovery. 相似文献