全文获取类型
收费全文 | 53206篇 |
免费 | 2978篇 |
国内免费 | 210篇 |
专业分类
耳鼻咽喉 | 153篇 |
儿科学 | 1300篇 |
妇产科学 | 832篇 |
基础医学 | 2861篇 |
口腔科学 | 1119篇 |
临床医学 | 8031篇 |
内科学 | 6422篇 |
皮肤病学 | 414篇 |
神经病学 | 2430篇 |
特种医学 | 543篇 |
外科学 | 2694篇 |
综合类 | 5644篇 |
现状与发展 | 1篇 |
一般理论 | 4篇 |
预防医学 | 19305篇 |
眼科学 | 251篇 |
药学 | 2783篇 |
26篇 | |
中国医学 | 548篇 |
肿瘤学 | 1033篇 |
出版年
2024年 | 95篇 |
2023年 | 1157篇 |
2022年 | 2039篇 |
2021年 | 2624篇 |
2020年 | 2557篇 |
2019年 | 3523篇 |
2018年 | 3053篇 |
2017年 | 2047篇 |
2016年 | 1462篇 |
2015年 | 1656篇 |
2014年 | 3662篇 |
2013年 | 4022篇 |
2012年 | 3234篇 |
2011年 | 3522篇 |
2010年 | 2658篇 |
2009年 | 2493篇 |
2008年 | 2477篇 |
2007年 | 2342篇 |
2006年 | 1840篇 |
2005年 | 1227篇 |
2004年 | 1025篇 |
2003年 | 836篇 |
2002年 | 694篇 |
2001年 | 601篇 |
2000年 | 523篇 |
1999年 | 433篇 |
1998年 | 371篇 |
1997年 | 296篇 |
1996年 | 215篇 |
1995年 | 180篇 |
1994年 | 135篇 |
1993年 | 114篇 |
1992年 | 104篇 |
1991年 | 73篇 |
1990年 | 64篇 |
1989年 | 46篇 |
1988年 | 46篇 |
1985年 | 278篇 |
1984年 | 395篇 |
1983年 | 312篇 |
1982年 | 315篇 |
1981年 | 304篇 |
1980年 | 253篇 |
1979年 | 233篇 |
1978年 | 205篇 |
1977年 | 154篇 |
1976年 | 135篇 |
1975年 | 119篇 |
1974年 | 103篇 |
1973年 | 77篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
81.
北京市东城区和平里社区居民慢性病防治探讨 总被引:3,自引:0,他引:3
王秀清 《中国慢性病预防与控制》1997,5(1):29-30,33
为探索慢性病的防治方法,我们于1989 ̄1994年社区居民中开展了以高血压为主的循环系统慢性病防治课题,经过5年的干预,观察组与对照组居民及接受管理的高血压病人在减少吸烟,饮酒,控制食盐摄入,掌握慢性病防治知识等方面有显著性差异,取得了满意的结果,从而为今后全面开展慢性病防治积累了经验。 相似文献
82.
The public sector in Britain has been subjected to over a decade of major reform aimed at breaking up public service monopolies, at containing costs while at the same time opening services up to greater consumer choice. Health and social services have not been exempt from this revolution in the organization and management of public sector services. The long-standing policy of care in the community is being subjected to market principles and the introduction of a ‘contract culture’ very similar to the NHS reforms introduced in 1991. This paper reviews the origins of these developments in the doctrines of ‘new public management’, a movement which has proved attractive to policy-makers in many countries. Local authority social services departments have been identified as the lead agency for the development of a mixed economy of care following a review of community care policy by the government's health adviser, Sir Roy Griffiths, and a subsequent white paper. This paper examines the limited empirical evidence available on how managers and providers are meeting the challenge bestowed upon them, and concludes that most authorities are moving ahead cautiously if at all. Only a handful of authorities studied have embraced the reforms with any degree of enthusiasm. The paper concludes with an assessment of the reforms from two perspectives: a pessimistic one and an optimistic one. There are many worrying features of the reforms, not least among these being a lack of clarity over their intended purpose. Tensions and contradictions are plentiful, which places in jeopardy the certainty of the reforms in becoming user led rather than provider driven. A more optimistic scenario is that the changes are leading to a loosening up of services and practices which have often suffered from sclerotic tendencies, paternalism and sometimes complacency. If the reform process is skilfully handled and not rushed and if the ends are clearly established and communicated then users and carers could prove to be the principal beneficiaries. 相似文献
83.
公共卫生评估的历史发展大致经历了四个阶段:基本研究、状态评估、衡量效力以及责任和遵从标准。从公共卫生评估演变的轨迹我们可以得出下列启示:项目循环管理方法倾向、结果和过程评估的增加、强调方法上的精确、越来越多地使用定量的和混合的方法以及对公众的责任。 相似文献
84.
85.
86.
AIDS: Awareness and blood handling practices of health care workers in Lagos,Nigeria 总被引:1,自引:0,他引:1
A questionnaire survey of 260 health care workers from 13 randomly selected health care facilities was undertaken. Their knowledge, attitude, belief and blood handling practices regarding HIV/AIDS were enquired about. Virtually all (99.0%) respondents had heard about AIDS but only 57.0% had seen an AIDS patient before. Although 83.0% knew that AIDS is caused by a virus, a high proportion still confuses mode of transmission with causative agent. Deficient knowledge was exhibited when asked about groups of people who were at a higher risk of contracting HIV and AIDS: Only 54.6% and 51.5% identified homosexuals and IV drug users as being at a higher risk. Almost all (97.0%) of our respondents claimed to have been more careful in their blood handling practices since the emergence of AIDS, 68.5% wore gloves for all procedures involving handling of blood and 28.5% sometimes although as many as 30.4%, 40.4% and 18.1% do not wear gloves for cleaning up blood stained materials, nursing procedures and taking obstetric delivery respectively. It was evident from their responses that not all the health workers knew the correct method for disposing of used bloodstained instruments and left-over blood samples and neither were they all adhering to the safety guidelines recommended for handling these materials. Education of all health care workers in Nigeria on the Universal Precautions Guidelines issued by the Centers for Disease Control (CDC) in 1987 regarding blood, body fluids and contaminated instruments' handling precautions is urgently recommended. 相似文献
87.
云南省卫生资源配置标准的弹性系数研究 总被引:2,自引:1,他引:1
目的 在进行云南省区域分类基础上制定云南省区域卫生资源配置标准标志值后 ,根据云南省各个地区的特点增加不同弹性系数。方法 采用流行病学研究方法 ,收集和分析云南省不同地州市 1990~ 1999年有关人口、社会经济状况及卫生经费的投入、居民健康状况、居民文化、生活水平、少数民族状况、旅游地区、边境线长短及贫困状况等资料。结果 研究结果表明曲靖地区、玉溪市、保山地区增加弹性系数最少 ,分别为 0 67%、 1 5 8%和1 68% ,怒江州、迪庆州和西双版纳州增加弹性系数最多 ,分别为 11 15 %、 10 2 5 %和 9 84 %。其它地区的弹性系数分别为昆明市 5 88% ,昭通地区 2 3 1% ,楚雄州 2 3 0 % ,红河州 7 0 3 % ,文山州 5 5 3 % ,思茅地区 7 4 3 % ,大理州4 94 % ,德宏州 6 78% ,丽江地区 4 3 5 % ,临沧地区 6 13 %。结论 云南省区域卫生配置标准的弹性系数研究为云南省卫生资源区域分类配置标准提供了科学依据 ,不同弹性系数体现了云南省不同地区的卫生资源区域分类配置标准的公平性、合理性及实用性 相似文献
88.
D. J. W. Hunter C. M. McKee N. A. Black C. F. B. Sanderson 《Quality of life research》1995,4(4):335-341
Our objective was to determine the extent to which lower urinary tract symptoms affect the general health status of men and contribute to the decision to undergo surgery. A cross-sectional population survey using postal questionnaires was conducted in the North West Thames health region, followed by a prospective cohort study of men undergoing prostatectomy (North West Thames and Oxford regions). The subjects in the first survey were 221 men aged 55 and over with previously reported mild, moderate or severe urinary symptoms; subjects in the second study were 388 men undergoing prostatectomy. Main outcome measures were selfreported symptom severity, bothersomeness and general health status (Nottingham Health Profilie, Part 1). The response rate among eligible responders in the population survey was 85.7%. Increasing symptom severity was associated with worsening NHP scores for energy, emotional reactions, sleep and physical mobility (p<0.01). Increasing bother-someness of symptoms was associated with emotional reactions, sleep and pain (p<0.05). Men undergoing surgery reported worse health status than men in the population with the same severity of symptoms as regards emotional reactions, energy and pain. For a given level of symptom severity, the impact of those symptoms on aspects of a man's general health status may be the determinant of seeking and undergoing surgery. Greater understanding of the factors that affect a man's response to his symptoms is needed in interpreting the decision to seek and accept treatment. 相似文献
89.
健康教育防制儿童营养性贫血的可行性研究 总被引:4,自引:1,他引:3
本文以大规模随机化人群实验,用铁剂治疗、铁剂预防和空白对照的方法论证了健康教育做为儿童营养性贫血防制对策与措施的可行性.结果证实健康教育与药物治疗相比前者具有受益人群广泛、发挥作用长效、预防病种广谱、投入少效益高和人群依从性好等优点,比传统的药物治疗和预防更有推广价值,对儿童营养性贫血和类似的儿童常见病的防制是经济、有效的措施.特别是对大规模的人群实施干预只有健康教育是可行的.在预防和治疗疾病过程中也应转变唯药物有效的观念,重视心理和行为的作用,对健康教育给予应有的重视. 相似文献
90.
Cardiovascular diseases (CVD) among non-communicable diseases are already a major public health challenge worldwide. A further increase in CVD is projected to occur over the next 25 years as a result of both adverse lifestyle changes and demographic shifts in the population age profile. The adverse impact of these health problems will affect women in particular, given the steady rise in the proportion of the aging population that will be women.The critical issue presently in the management of CVD is that we are not even adequately using the data that are available. Women still remain unaware that they are at risk, and information about women is not easily accessible to their physicians. This is a global issue and the need remains for worldwide initiatives with greater vigilance to identify these factors and make efforts to control them effectively.Currently, in scientific research, it is expected that the results of clinical research be analyzed for sex differences, sex- and gender-appropriateness, and sex- and gender-specific approaches for prevention, diagnosis, treatment, and counseling. To address the care discrepancy, the global community needs to develop a conducive environment within a comprehensive policy and operational framework to achieve favorable lifestyles, and CVD risk factor reduction for both men and women. 相似文献