全文获取类型
收费全文 | 87590篇 |
免费 | 8961篇 |
国内免费 | 573篇 |
专业分类
耳鼻咽喉 | 259篇 |
儿科学 | 2007篇 |
妇产科学 | 1685篇 |
基础医学 | 5504篇 |
口腔科学 | 4385篇 |
临床医学 | 16231篇 |
内科学 | 7998篇 |
皮肤病学 | 639篇 |
神经病学 | 5222篇 |
特种医学 | 876篇 |
外科学 | 3384篇 |
综合类 | 8077篇 |
现状与发展 | 3篇 |
一般理论 | 92篇 |
预防医学 | 34320篇 |
眼科学 | 359篇 |
药学 | 3100篇 |
80篇 | |
中国医学 | 885篇 |
肿瘤学 | 2018篇 |
出版年
2024年 | 268篇 |
2023年 | 2657篇 |
2022年 | 3160篇 |
2021年 | 4940篇 |
2020年 | 4977篇 |
2019年 | 4776篇 |
2018年 | 4172篇 |
2017年 | 3926篇 |
2016年 | 3747篇 |
2015年 | 3694篇 |
2014年 | 5742篇 |
2013年 | 7674篇 |
2012年 | 5000篇 |
2011年 | 5462篇 |
2010年 | 4068篇 |
2009年 | 4196篇 |
2008年 | 4093篇 |
2007年 | 4122篇 |
2006年 | 3537篇 |
2005年 | 2729篇 |
2004年 | 2358篇 |
2003年 | 2036篇 |
2002年 | 1526篇 |
2001年 | 1468篇 |
2000年 | 1272篇 |
1999年 | 884篇 |
1998年 | 747篇 |
1997年 | 585篇 |
1996年 | 494篇 |
1995年 | 339篇 |
1994年 | 321篇 |
1993年 | 327篇 |
1992年 | 268篇 |
1991年 | 227篇 |
1990年 | 185篇 |
1989年 | 149篇 |
1988年 | 176篇 |
1987年 | 117篇 |
1986年 | 106篇 |
1985年 | 111篇 |
1984年 | 78篇 |
1983年 | 55篇 |
1982年 | 46篇 |
1981年 | 48篇 |
1980年 | 52篇 |
1979年 | 34篇 |
1978年 | 36篇 |
1977年 | 39篇 |
1976年 | 33篇 |
1975年 | 34篇 |
排序方式: 共有10000条查询结果,搜索用时 515 毫秒
121.
Health care expenditure in Germany shows clear regional differences. Such geographic variations are often seen as an indicator for inefficiency. With its homogeneous health care system, low co‐payments and uniform prices, Germany is a particularly suited example to analyse regional variations. We use data for the year 2011 on expenditure, utilization of health services and state of health in Germany's statutory health insurance system. This data, which originate from a variety of administrative sources and cover about 90% of the population, are enriched with a wealth of socio‐economic variables, data on pollutants, prices and individual preferences. State of health and demography explains 55% of the differences as measured by the standard deviation while all control variables account for a total of 72% of the differences at county level. With other measures of variation, we can account for an even greater proportion. A higher proportion of variation than usually supposed can thus be explained. Whilst this study cannot quantify inefficiencies, our results contradict the thesis that regional variations reflect inefficiency. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
122.
Salaam Semaan 《Emerging infectious diseases》2016,22(10):1863-1864
123.
《Journal of pain and symptom management》2020,59(4):794-807.e4
ContextPalliative care is gaining ground globally and is endorsed in high-level policy commitments, but service provision, supporting policies, education, and funding are incommensurate with rapidly growing needs.ObjectivesThe objective of this study was to describe current levels of global palliative care development and report on changes since 2006.MethodsAn online survey of experts in 198 countries generated 2017 data on 10 indicators of palliative care provision, fitted to six categories of development. Factor analysis and discriminant analysis showed the validity of the categorization. Spearman correlation analyses assessed the relationship with World Bank Income Level (WBIL), Human Development Index (HDI), and Universal Health Coverage (UHC).ResultsNumbers (percentages) of countries in each development category were as follows: 1) no known palliative care activity, 47 (24%); 2) capacity-building, 13 (7%); 3a) isolated provision, 65 (33%); 3b) generalized provision, 22 (11%); 4a) preliminary integration into mainstream provision, 21 (11%); 4b) advanced integration, 30 (15%). Development levels were significantly associated with WBIL (rS = 0.4785), UHC (rS = 0.5558), and HDI (rS = 0.5426) with P < 0.001. Net improvement between 2006 and 2017 saw 32 fewer countries in Categories 1/2, 16 more countries in 3a/3b, and 17 more countries in 4a/4b.ConclusionPalliative care at the highest level of provision is available for only 14% of the global population and is concentrated in European countries. An 87% global increase in serious health-related suffering amenable to palliative care interventions is predicted by 2060. With an increasing need, palliative care is not reaching the levels required by at least half of the global population. 相似文献
124.
评价天津市各辖区基本公共卫生服务的资源配置效率,寻求有效的资源配置措施和方法,为进一步优化卫生资源配置提供参考依据。方法利用数据包络分析,对天津市16辖区的基本公共卫生服务进行效率评价。结果天津市基本公共卫生服务的资源配置效率整体不高,仅有5辖区达到了规模最优,多数区非DEA有效,且投入过剩与产出不足并存。结论为了达到最优的基本公共卫生服务效率,政府及各级基本公共卫生服务机构必须有效地完善、落实相关政策,优化资源投入结构,统筹地区差异,加强资源供给管理,提高资源利用效率。 相似文献
125.
126.
Stephanie A. Grilo Marina Catallozzi John S. Santelli Hanying Yan Xiaoyu Song Jennifer Heitel Kristen Kaseeska Julie Gorzkowski Alexandra E. Dereix Jonathan D. Klein 《The Journal of adolescent health》2019,64(3):311-318
Purpose
The objective of the study was to define factors associated with adolescent and young adult (AYA) experiences with private time and having discussed confidentiality and the impact of these experiences on improving delivery of clinical preventive services.Methods
In 2016, a nationally representative sample of 1,918 US AYAs (13- to 26-year-olds) was surveyed. Survey questionnaire domains were based on prior research and Fishers' information-motivation-behavior skills conceptual model. Data were weighted to represent US households with AYA and analyzed to identify factors independently associated with ever experiencing private time and discussions of confidentiality with a regular health-care provider (HCP). We examined the association of these experiences on AYA attitudes about health care.Results
Fifty-five percent of female and 49% of male AYA reported ever having had private time with an HCP and 55% of female and 44% of male AYA had spoken to an HCP about confidentiality. Independent predictors of having experienced private time and confidentiality included older age, race, higher household income, gender of the provider, amount of years with the provider, and involvement in risk behaviors. AYA who had experienced private time and confidentiality discussions had more positive attitudes about their providers, were more willing and comfortable discussing sensitive topics, and thought that these discussions should happen at younger ages.Conclusions
Although confidentiality and private time are important to AYA, many are not experiencing these components of care. Providing private time and discussions of confidentiality can improve the delivery of health care for young people by enhancing positive youth attitudes about preventive care. 相似文献127.
128.
129.
Maite Cruz Piqueras Ainhoa Rodríguez García de Cortazar Joaquín Hortal Carmona Javier Padilla Bernáldez 《Gaceta sanitaria / S.E.S.P.A.S》2019,33(1)
Objective
To analyse and understand vaccination hesitancy discourses, particularly those of people who have decided not to vaccinate their sons and daughters.Methods
Qualitative study of five individual interviews and two focus groups with people who chose not to vaccinate their children in the province of Granada (Spain).Results
Mothers and fathers manifest a system of health beliefs different to the biomedical paradigm. From an ethical point of view, they justify their position based on the right to autonomy and responsibility for their decisions. Alleged specific reasons: they doubt administration of several vaccines simultaneously at an early age in a systematic way and without individualising each case; they fear adverse effects and do not understand the variations of the vaccination schedule.Conclusions
These vaccination hesitancy discourses respond to the individual vs collective conflict; parents defend their right to bring up their children without any interference from the state and focus their responsibility on the individual welfare of their sons and daughters, regardless of the consequences that their actions might have on the collective. In their management of risks, they consider those derived from vaccination more relevant than the individual or collective consequences of not doing so. The vaccines generating most doubts are the more controversial ones within the scientific world. Transparency in communication of adverse effects; authorities respect for other health/disease concepts; banishment of the term “anti-vaccines” from the media and scientific vocabulary, and developing spaces for dialogue are bridges to be built. 相似文献130.