全文获取类型
收费全文 | 5882篇 |
免费 | 1118篇 |
国内免费 | 26篇 |
专业分类
耳鼻咽喉 | 54篇 |
儿科学 | 103篇 |
妇产科学 | 61篇 |
基础医学 | 289篇 |
口腔科学 | 89篇 |
临床医学 | 1118篇 |
内科学 | 801篇 |
皮肤病学 | 139篇 |
神经病学 | 217篇 |
特种医学 | 53篇 |
外科学 | 285篇 |
综合类 | 440篇 |
现状与发展 | 1篇 |
预防医学 | 2912篇 |
眼科学 | 22篇 |
药学 | 235篇 |
3篇 | |
中国医学 | 32篇 |
肿瘤学 | 172篇 |
出版年
2024年 | 34篇 |
2023年 | 269篇 |
2022年 | 271篇 |
2021年 | 443篇 |
2020年 | 474篇 |
2019年 | 414篇 |
2018年 | 410篇 |
2017年 | 419篇 |
2016年 | 364篇 |
2015年 | 353篇 |
2014年 | 452篇 |
2013年 | 608篇 |
2012年 | 302篇 |
2011年 | 313篇 |
2010年 | 250篇 |
2009年 | 232篇 |
2008年 | 234篇 |
2007年 | 198篇 |
2006年 | 160篇 |
2005年 | 131篇 |
2004年 | 137篇 |
2003年 | 90篇 |
2002年 | 79篇 |
2001年 | 72篇 |
2000年 | 47篇 |
1999年 | 30篇 |
1998年 | 34篇 |
1997年 | 21篇 |
1996年 | 24篇 |
1995年 | 20篇 |
1994年 | 20篇 |
1993年 | 43篇 |
1992年 | 22篇 |
1991年 | 15篇 |
1990年 | 4篇 |
1989年 | 8篇 |
1988年 | 8篇 |
1987年 | 5篇 |
1986年 | 3篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有7026条查询结果,搜索用时 15 毫秒
31.
Carlo Cervia Jakob Nilsson Yves Zurbuchen Alan Valaperti Jens Schreiner Aline Wolfensberger Miro E. Raeber Sarah Adamo Sebastian Weigang Marc Emmenegger Sara Hasler Philipp P. Bosshard Elena De Cecco Esther Bächli Alain Rudiger Melina Stüssi-Helbling Lars C. Huber Annelies S. Zinkernagel Onur Boyman 《The Journal of allergy and clinical immunology》2021,147(2):545-557.e9
32.
The delivery of mental health services, particularly psychotherapy and other psychosocial care, is being increasingly limited by financial constraints. We briefly review three trends that will play an increasingly important role in the delivery of mental health services in large organizations such as health maintenance organizations. These are (a) an increasing role for self-help and bibliotherapy interventions, both in traditional and electronic formats; (b) mental health services being offered in settings other than mental health specialty clinics; and (c) an increased emphasis on mechanisms for improving the quality and type of services offered, including quality improvement methods and pay-for-performance. 相似文献
33.
Motivation to provide care is a significant predictor of informal caregiving among family caregivers of persons with dementia. Adequate support is an important source of help and relief to caregivers, but fragmentation of dementia care services is common and better ways of supporting these caregivers are needed. Knowledge of adult-child caregivers' motivation and how this motivation is influenced by community healthcare services is lacking. The aim of this study is therefore to describe and explore adult children's experiences with community healthcare services for their home-dwelling parent with dementia and how these influence their caregiver motivation. The study applied a qualitative design based on three focus group interviews with 15 of these caregivers (40–69 years) in Norway in 2017. The study results indicate three categories supporting adult children's sustained motivation as caregivers: (a) caregivers prioritize their parent's need for healthcare services over their own need for support; (b) caregivers need acknowledgement through respect and involvement; and (c) caregivers need timely information and competence as the dementia progresses. To stimulate collaboration among adult-child caregivers, their parents with dementia, and community healthcare services, we claim that a relationship-centred care framework could be emphasised as a way of supporting sustained motivation among caregivers to parents with dementia as part of community healthcare services. 相似文献
34.
目的 调查武汉市地铁工作人员营养与饮食行为状况,分析饮食行为影响因素。方法 采用分层随机抽样的方式对武汉市地铁集团402名员工进行问卷调查,收集基本信息、膳食摄入及日常饮食行为情况,运用秩和检验、χ2检验和多因素logistic回归分析对营养状况和饮食行为及其影响因素进行评价。结果 地铁工作人员日均蔬菜类、水果类、蛋类、奶及奶制品和水摄入量低于推荐量;畜禽肉类摄入量高于建议量;三班制和四班制员工的蔬菜摄入量低于不轮班和两班制员工(P<0.05)。不经常吃早餐的比例,客运值班员和行车值班员高于行政管理人员(χ2 = 19.307,P<0.05),三班制和四班制高于不轮班(χ2 = 20.513,P<0.05)。点外卖的比例,女性高于男性(χ2 = 10.195,P<0.05),客运值班员和行车值班员高于电动客车司机和行政管理人员(χ2 = 31.061,P<0.05),三班制和四班制高于不轮班(χ2 = 19.735,P<0.05)。51.3%的员工吃饭过快。多因素logistic分析显示,男性(OR = 0.595,95%CI:0.357~0.990)、非行政管理人员工种(客运值班员:OR = 0.169,95%CI:0.036~0.794; 行车值班员:OR = 0.095,95%CI:0.020~0.452; 电动客车司机:OR = 0.107,95%CI:0.022~0.527)与健康饮食行为呈负相关,年龄小(20~25岁:OR = 4.568,95%CI:1.784~11.694;>25~30岁:OR = 3.553,95%CI:1.528~8.261)与健康饮食行为呈正相关。结论 武汉市地铁工作人员存在某些食物种类摄入不合理情况,性别、年龄和工种是健康饮食行为的影响因素。 相似文献
35.
Many dietary guidelines emphasise “mostly” whole grain food choices as part of an overall healthy eating pattern based on evidence for enhancing nutritional status and reducing chronic disease. Still, countries including Australia fall short of their consumption targets. Furthermore, healthcare cost savings associated with increasing the consumption of whole grains in alignment with the Daily Target Intake (DTI) recommendation of 48 g are unknown. The aim of this study was to assess the potential savings in costs of healthcare and lost productivity associated with a reduction in the incidence of Type 2 Diabetes Mellitus (T2DM) and cardiovascular disease (CVD) through meeting the 48 g DTI recommendation for whole grains among the Australian adult population (>20 years). A three-step cost-of-illness analysis was conducted using input parameters from: 1) estimates of proportions of consumers (5%, 15%, 50%, and 100%) who would increase their current intake of whole grains to meet the recommended DTI in Australia; 2) relative reductions in risk of T2DM and CVD associated with specific whole grain consumption, as reported in meta-analysis studies; and 3) data on costs of healthcare and productivity loss based on monetary figures by national healthcare authorities. A very pessimistic (5% of the population) through to universal (100% of the population) adoption of the recommended DTI was shown to potentially yield AUD 37.5 (95% CI 22.3–49.3) to AUD 750.7 (95% CI 445.7–985.2) million, and AUD 35.9 (95% CI 8.3–60.7) to AUD 717.4 (95% CI 165.5–1214.1) million in savings on annual healthcare and lost productivity costs for T2DM and CVD, respectively. Given such economic benefits of the recommended consumption of whole grains, in exchange for refined grains, there is a real opportunity to facilitate relevant socioeconomic cost-savings for Australia and reductions in disease. These results are suggestive of a much greater opportunity to communicate the need for dietary change at all levels, but particularly through food-based dietary guidelines and front-of-pack labelling initiatives. 相似文献
36.
37.
Dan Liu Maria Lucia Pace Maria Goddard Rowena Jacobs Raphael Wittenberg Anne Mason 《Health economics》2021,30(1):36-54
Since 2010, adult social care spending in England has fallen significantly in real terms whilst demand has risen. Reductions in social care supply may also have impacted demand for NHS services, particularly for those whose care is provided at the interface of the health and care systems. We analyzed a panel dataset of 150 local authorities (councils) to test potential impacts on hospital utilization by people aged 65 and over: emergency admission rates for falls and hip fractures (“front‐door” measures); and extended stays of 7 days or longer; and 21 days or longer (“back‐door” measures). Changes in social care supply were assessed in two ways: gross current expenditure (per capita 65 and over) adjusted by local labor costs and social care workforce (per capita 18 and over). We ran negative binomial models, controlling for deprivation, ethnicity, age, unpaid care, council class, and year effects. To account for potential endogeneity, we ran instrumental variable regressions and dynamic panel models. Sensitivity analysis explored potential effects of funding for integrated care (the Better Care Fund). There was no consistent evidence that councils with higher per capita spend or higher social care staffing rates had lower hospital admission rates or shorter hospital stays. 相似文献
38.
Andrea Calcagno Valeria Ghisetti Teresa Emanuele Mattia Trunfio Silvia Faraoni Lucio Boglione Elisa Burdino Sabrina Audagnotto Filippo Lipani Marco Nigra Antonio DAvolio Stefano Bonora Giovanni Di Perri 《Emerging infectious diseases》2021,27(1):303
We measured severe acute respiratory syndrome coronavirus 2 spike protein subunits S1/S2 antibodies by using capillary electrophoresis and a chemiluminescence immunoassay for 5,444 active healthcare workers in Italy. Seroprevalence was 6.9% and higher among participants having contact with patients. Seroconversion was not observed in 37/213 previously infected participants. 相似文献
39.
Lara J. Akinbami Philip A. Chan Nga Vuong Samira Sami Dawn Lewis Philip E. Sheridan Susan L. Lukacs Lisa Mackey Lisa A. Grohskopf Anita Patel Lyle R. Petersen 《Emerging infectious diseases》2021,27(3):823
Healthcare personnel are recognized to be at higher risk for infection with severe acute respiratory syndrome coronavirus 2. We conducted a serologic survey in 15 hospitals and 56 nursing homes across Rhode Island, USA, during July 17–August 28, 2020. Overall seropositivity among 9,863 healthcare personnel was 4.6% (95% CI 4.2%–5.0%) but varied 4-fold between hospital personnel (3.1%, 95% CI 2.7%–3.5%) and nursing home personnel (13.1%, 95% CI 11.5%–14.9%). Within nursing homes, prevalence was highest among personnel working in coronavirus disease units (24.1%; 95% CI 20.6%–27.8%). Adjusted analysis showed that in hospitals, nurses and receptionists/medical assistants had a higher likelihood of seropositivity than physicians. In nursing homes, nursing assistants and social workers/case managers had higher likelihoods of seropositivity than occupational/physical/speech therapists. Nursing home personnel in all occupations had elevated seropositivity compared with hospital counterparts. Additional mitigation strategies are needed to protect nursing home personnel from infection, regardless of occupation. 相似文献
40.
《Journal of the Academy of Nutrition and Dietetics》2022,122(11):2087-2096.e7
BackgroundProfessionalism is a vital aspect of health care and multidisciplinary teamwork. Although there is substantive professionalism literature in medicine and an expanding health care professions literature, there is a significant gap in understanding professionalism in dietetics. There are very few research papers in the dietetics literature on this issue compared with other health professions. Given the multidisciplinary nature of health care, it is important to understand what professionalism means within each profession to develop shared understandings across health care teams.ObjectiveThe study aim was to explore how dietetics professionalism is conceptualized by dietetic practitioners/preceptors, faculty, and new graduates.DesignA constructionist exploratory qualitative interview study was conducted.Participants/settingOne hundred participants (dietetics graduates, faculty, and practitioners/preceptors), associated with 17 universities across Australia and New Zealand and from diverse geographical and work settings, participated in 27 group and 24 individual interviews from March 2018 to June 2019.Statistical analyses performedThematic framework analysis was used to examine participants’ understandings of professionalism.ResultsTwenty-three dimensions of dietetics professionalism were identified, with the most common being communication and including four novel dimensions of professionalism (generational, emotion management, cultural capability, and advocacy) not previously described in other professions. Professionalism as emotion management and generational adds new insights to the professionalism literature, expanding understandings of this vital aspect of health care. Although high levels of consistency in professionalism understandings existed across the three stakeholder groups, some interesting differences were found. The profession of dietetics shares similarities with other professions in the ways professionalism is conceptualized.ConclusionsUsing these dimensions of professionalism as a framework for teaching and learning about professionalism will help in clarifying expectations and expand shared understandings about professionalism for dietitians, other health professions, and across multidisciplinary teams. 相似文献