首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   49285篇
  免费   2046篇
  国内免费   184篇
耳鼻咽喉   191篇
儿科学   1229篇
妇产科学   700篇
基础医学   2886篇
口腔科学   796篇
临床医学   7468篇
内科学   5935篇
皮肤病学   437篇
神经病学   1741篇
特种医学   708篇
外科学   2628篇
综合类   5544篇
现状与发展   1篇
一般理论   7篇
预防医学   17093篇
眼科学   215篇
药学   2403篇
  28篇
中国医学   609篇
肿瘤学   896篇
  2024年   62篇
  2023年   928篇
  2022年   1759篇
  2021年   2381篇
  2020年   2214篇
  2019年   3146篇
  2018年   2753篇
  2017年   1786篇
  2016年   1237篇
  2015年   1442篇
  2014年   3684篇
  2013年   3380篇
  2012年   3068篇
  2011年   3398篇
  2010年   2638篇
  2009年   2440篇
  2008年   2288篇
  2007年   2096篇
  2006年   1639篇
  2005年   1056篇
  2004年   840篇
  2003年   684篇
  2002年   568篇
  2001年   481篇
  2000年   419篇
  1999年   369篇
  1998年   305篇
  1997年   222篇
  1996年   130篇
  1995年   133篇
  1994年   101篇
  1993年   97篇
  1992年   89篇
  1991年   56篇
  1990年   36篇
  1989年   38篇
  1986年   85篇
  1985年   308篇
  1984年   430篇
  1983年   365篇
  1982年   377篇
  1981年   351篇
  1980年   292篇
  1979年   276篇
  1978年   248篇
  1977年   203篇
  1976年   192篇
  1975年   155篇
  1974年   120篇
  1973年   80篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
952.
It is assumed that interventions to improve the adherence to insulin by allied health professionals discussing adherence to insulin will improve this adherence. However, there is little evidence to support this, as interventions by a pharmacist or nurse educator have not been shown conclusively to improve adherence to insulin.  相似文献   
953.
The aim of this study is to estimate whether the occupational exposure to low dose anesthetic gases could cause alterations of blood parameters in health care workers. 119 exposed subjects and 184 not exposed controls were included in the study. Each worker underwent the complete blood count test (CBC), proteinaemia, leukocyte count, serum lipids, liver and kidney blood markers.The liver blood markers show statistically significant differences in health care workers compared with controls (p < 0.05), a statistically significant decrease in neutrophils and an increase of lymphocytes in health care workers compared with controls (p < 0.05). The prevalence of values outside the range for GPT, GGT, total bilirubin, lymphocytes and neutrophils was statistically significant in health care workers compared with controls (p < 0.05). The results suggest that occupational exposure to low dose anesthetic gases could influence some haematochemical hepatic and hematopoietic parameters in exposed health care workers.  相似文献   
954.
Little is known about how health insurance contributes to the prevalence of chronic disease in the overlooked population of low-income urban whites. This study uses cross-sectional data on 491 low-income urban non-elderly non-Hispanic whites from the Exploring Health Disparities in Integrated Communities—Southwest Baltimore (EHDIC-SWB) study to examine the relationship between insurance status and chronic conditions (defined as participant report of ever being told by a doctor they had hypertension, diabetes, stroke, heart attack, anxiety or depression, asthma or emphysema, or cancer). In this sample, 45.8 % were uninsured, 28.3 % were publicly insured, and 25.9 % had private insurance. Insured participants had similar odds of having any chronic condition (odds ratios (OR) 1.06; 95 % confidence intervals (CI) 0.70–1.62) compared to uninsured participants. However, those who had public insurance had a higher odds of reporting any chronic condition compared to the privately insured (OR 2.29; 95 % CI 1.21–4.35). In low-income urban areas, the health of whites is not often considered. However, this is a significant population whose reported prevalence of chronic conditions has implications for the Medicaid expansion and the implementation of health insurance exchanges.  相似文献   
955.
956.
This article investigates impacts of hospital autonomization in Viet Nam employing a “decision-space” framework that examines how hospitals have used their increased discretion and to what effect. Analysis suggests autonomization is associated with increased revenue, increasing staff pay, and greater investment in infrastructure and equipment. But autonomization is also associated with more costly and intensive treatment methods of uncertain contribution to the Vietnamese government's stated goal of quality healthcare for all. Impacts of autonomization in district hospitals are less striking. Despite certain limitations, the analysis generates key insights into early stages of hospital autonomization in Viet Nam.  相似文献   
957.
目的研究江苏省总计13个省辖市居民的不良用药习惯及思维误区,并探讨简单高效的推进安全用药教育的方式方法。方法2010年12月-2011年2月,对江苏省13个省辖市居民进行安全用药调研工作。共收回问卷4987份,有效问卷4775份,采用SPSS17.0统计软件进行统计分析。结果居民合理用药意识淡薄,用药随意性大,仅58.34%的人根据医师处方选择药物,34.43%的被调查者表示在用药过程中能严格遵守医嘱。40.36%的被调查者表示在用药过程中有自行增减药量的行为,51.71%的被调查者表示曾有过稍有好转即自行停药的行为。结论推进安全用药教育迫在眉睫。  相似文献   
958.
Studies evaluating Nutrition Rehabilitation Centres indicate that they hold several advantages over alternative methods of care for malnourished children. Nonetheless, an important minority of outpatient cases attending such centres does not make adequate progress, and this has been attributed to shortcomings in their home environment.

A survey in Uganda showed that different features of the home environment affected progress for urban and rural outpatients. The findings also suggest that for both groups the child's home situation can indeed be used to explain his progress, with eight variables explaining around 70 percent of the variance in recovery scores. These variables describe the size of the child's family, the level of food resources available, and the amount of help his mother can martial in caring for him.

Information on these predictors of recovery could be recorded in the case notes on the child's first attendance at the clinic, thereby providing an initial estimate of the risk that he will not respond adequately to the outpatient treatment, requiring, instead, more intensive care.  相似文献   
959.
While many of the measurement approaches in health inequality measurement assume the existence of a ratio-scale variable, most of the health information available in population surveys is given in the form of categorical variables. Therefore, the well-known inequality indices may not always be readily applicable to measure health inequality as it may result in the arbitrariness of the health concentration index's value. In this paper, we address this problem by changing the dimension in which the categorical information is used. We therefore exploit the multi-dimensionality of this information, define a new ratio-scale health status variable and develop positional stochastic dominance conditions that can be implemented in a context of categorical variables. We also propose a parametric class of population health and socioeconomic health inequality indices. Finally we provide a twofold empirical illustration using the Joint Canada/United States Surveys of Health 2004 and the National Health Interview Survey 2010.  相似文献   
960.
ObjectiveHealth planning is the process of identifying community needs for health care, facilities and technology and allocating resources to meet those needs to the exclusion of redundant capacity. Health planning in the United States was pioneered in Rochester, New York through private sector efforts but today, health planning is generally understood in the US as referring to a governmental function: “certificate of need” regulation. Yet health planning need not be, and indeed is not today, an exclusively governmental function. The original conception of a health planning agency as a civil society-based, non-governmental organization survives in Rochester. This study assesses the, viability of this private option as an alternative to regulation.MethodOutcomes of applications to a, non-governmental health planning entity in the Rochester region (CTAAB) were compared to, outcomes from the state agency (DOH) for two adjacent regions.ResultsThe non-governmental, approach to health planning appeared to be more restrictive, with the Rochester region spending less. There are numerous extraneous commas in the text as it appears on my screen. Are they part of the document? Iif so, they need to be removed. If they were not added to the document, the document does not look right in the Online Proofing application. Overall and in particular, utilizing less advanced imaging.ConclusionsThe Rochester NY region, appears to demonstrate that cooperative efforts by stakeholders can lower health care costs. For such, voluntary efforts to succeed, policymakers need not regulate—they can engage with community, leaders by convening them to analyze local utilization patterns, review options for chartering or, subsidizing non-governmental organizations to implement planning, and delineate safe harbors from, antitrust or other potential liability arising from collective action  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号