全文获取类型
收费全文 | 87414篇 |
免费 | 8817篇 |
国内免费 | 550篇 |
专业分类
耳鼻咽喉 | 251篇 |
儿科学 | 1980篇 |
妇产科学 | 1970篇 |
基础医学 | 5546篇 |
口腔科学 | 4363篇 |
临床医学 | 16051篇 |
内科学 | 7392篇 |
皮肤病学 | 660篇 |
神经病学 | 4945篇 |
特种医学 | 837篇 |
外科学 | 3317篇 |
综合类 | 8183篇 |
现状与发展 | 3篇 |
一般理论 | 90篇 |
预防医学 | 34712篇 |
眼科学 | 315篇 |
药学 | 3233篇 |
79篇 | |
中国医学 | 888篇 |
肿瘤学 | 1966篇 |
出版年
2024年 | 247篇 |
2023年 | 2589篇 |
2022年 | 2865篇 |
2021年 | 4860篇 |
2020年 | 4885篇 |
2019年 | 4709篇 |
2018年 | 4107篇 |
2017年 | 3905篇 |
2016年 | 3760篇 |
2015年 | 3695篇 |
2014年 | 5776篇 |
2013年 | 7672篇 |
2012年 | 5044篇 |
2011年 | 5534篇 |
2010年 | 4066篇 |
2009年 | 4225篇 |
2008年 | 4099篇 |
2007年 | 4137篇 |
2006年 | 3564篇 |
2005年 | 2750篇 |
2004年 | 2364篇 |
2003年 | 2053篇 |
2002年 | 1515篇 |
2001年 | 1474篇 |
2000年 | 1272篇 |
1999年 | 896篇 |
1998年 | 747篇 |
1997年 | 592篇 |
1996年 | 495篇 |
1995年 | 344篇 |
1994年 | 322篇 |
1993年 | 329篇 |
1992年 | 271篇 |
1991年 | 229篇 |
1990年 | 182篇 |
1989年 | 149篇 |
1988年 | 177篇 |
1987年 | 116篇 |
1986年 | 101篇 |
1985年 | 120篇 |
1984年 | 105篇 |
1983年 | 57篇 |
1982年 | 54篇 |
1981年 | 52篇 |
1980年 | 55篇 |
1979年 | 35篇 |
1978年 | 41篇 |
1977年 | 39篇 |
1976年 | 35篇 |
1975年 | 35篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
121.
122.
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123.
124.
125.
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126.
127.
《Health & place》2020
BackgroundGrowing research documents associations between neighborhood social cohesion with better health and well-being. However, other work has identified social cohesion's “dark side” and its ability to promote negative outcomes. It remains unclear if such diverging findings are attributable to differences in study design, or other reasons. To better capture its potential heterogeneous effects, we took an outcome-wide analytic approach to examine perceived neighborhood social cohesion in relation to a range of health and well-being outcomes.MethodsData were from 12,998 participants in the Health and Retirement Study—a large, diverse, prospective, and nationally representative cohort of U.S. adults age >50. Multiple regression models evaluated if social cohesion was associated with physical health, health behavior, psychological well-being, psychological distress, and social well-being outcomes. All models adjusted for sociodemographics, personality, and numerous baseline health and well-being characteristics. To evaluate the effects of change in cohesion, we adjusted for prior social cohesion. Bonferroni correction was used to account for multiple testing.ResultsPerceived neighborhood social cohesion was not associated with most physical health outcomes (except for reduced risk of physical functioning limitations and better self-rated health) nor health behavior outcomes (except for more binge drinking). However, it was associated with numerous subsequent psychosocial well-being (i.e., higher: positive affect, life satisfaction, optimism, purpose in life, mastery, health mastery, financial mastery; reduced likelihood of infrequent contact with friends) and psychological distress outcomes (i.e., lower depression, hopelessness, negative affect, loneliness) over the 4-year follow-up period.ConclusionsWith further research, these results suggest that perceived neighborhood social cohesion might be a valuable target for innovative policies aimed at improving well-being. 相似文献
128.
《Research in social & administrative pharmacy》2020,16(11):1597-1601
Disseminating research findings from global health collaborations is essential to advancing science. However, there are a number of ethical considerations and potential challenges to address to ensure thoughtful and non-exploitative reporting. The factors include the benefits and risks to publication, authorship criteria or values, and the accessibility of forums or journals in which to pursue publication. This paper provides commentary related to planning for writing, communicating intentions to publish, obtaining permissions to publish, risks in internationally collaborative work, authorship principles, and journal selection. Authors' and editors’ knowledge of experienced individuals from both pharmacy literature, medical fields, and general publications is incorporated to provide an assessment of risks and benefits of publication of international global health research. 相似文献
129.
130.