全文获取类型
收费全文 | 4687篇 |
免费 | 450篇 |
国内免费 | 77篇 |
专业分类
耳鼻咽喉 | 63篇 |
儿科学 | 147篇 |
妇产科学 | 123篇 |
基础医学 | 146篇 |
口腔科学 | 42篇 |
临床医学 | 1048篇 |
内科学 | 627篇 |
皮肤病学 | 53篇 |
神经病学 | 134篇 |
特种医学 | 131篇 |
外科学 | 514篇 |
综合类 | 396篇 |
预防医学 | 891篇 |
眼科学 | 31篇 |
药学 | 614篇 |
21篇 | |
中国医学 | 115篇 |
肿瘤学 | 118篇 |
出版年
2024年 | 21篇 |
2023年 | 168篇 |
2022年 | 230篇 |
2021年 | 296篇 |
2020年 | 357篇 |
2019年 | 369篇 |
2018年 | 324篇 |
2017年 | 270篇 |
2016年 | 200篇 |
2015年 | 204篇 |
2014年 | 399篇 |
2013年 | 367篇 |
2012年 | 289篇 |
2011年 | 252篇 |
2010年 | 167篇 |
2009年 | 182篇 |
2008年 | 180篇 |
2007年 | 175篇 |
2006年 | 134篇 |
2005年 | 118篇 |
2004年 | 111篇 |
2003年 | 108篇 |
2002年 | 57篇 |
2001年 | 34篇 |
2000年 | 29篇 |
1999年 | 32篇 |
1998年 | 21篇 |
1997年 | 13篇 |
1996年 | 18篇 |
1995年 | 18篇 |
1994年 | 15篇 |
1993年 | 7篇 |
1992年 | 8篇 |
1991年 | 10篇 |
1990年 | 7篇 |
1989年 | 3篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1985年 | 3篇 |
1984年 | 4篇 |
1983年 | 1篇 |
1981年 | 3篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1974年 | 1篇 |
排序方式: 共有5214条查询结果,搜索用时 15 毫秒
21.
《Journal of the American Medical Directors Association》2021,22(8):1599-1601
The COVID-19 pandemic has had a major impact on nursing homes (NHs), which were not prepared to manage infections among their at-risk patient populations. In order to comply with the French government's guidelines, we rapidly set up a local support platform (LSP) to help NHs manage their cases of COVID-19. The LSP comprised multidisciplinary decision support, a specialist phone hotline, mobile geriatric medicine teams, and videoconferences on COVID-19.We first quantified the LSP's interventions in 63 local NHs since the start of the first wave of COVID-19 (March 2020): 9 instances of multidisciplinary decision support, 275 calls to the specialist phone hotline, 84 interventions by mobile geriatric medicine teams, and 16 videoconferences. The LSP had been used during and between the first and second waves of the epidemic, and all had evolved to meet the NHs' needs. 相似文献
22.
Keerti L. Dantuluri James G. Carlucci Leigh M. Howard David P. Johnson Hillary Spencer Neerav A. Desai Kathryn A. Garguilo Gregory J. Wilson 《The Journal of adolescent health》2021,68(4):713-718
PurposeThe purpose of the study was to increase the proportion of youth living with HIV (YLWH) aged ≥11 years who undergo developmentally appropriate disclosure about their HIV status.MethodsA quality improvement project was initiated at an urban pediatric HIV clinic between July 2018 and March 2020. The primary outcome measure was the proportion of YLWH aged ≥11 years who were disclosed to about their HIV status. The proportion of undisclosed YLWH who had documented nondisclosure status was also assessed as a process measure. Plan-Do-Study-Act (PDSA) cycles for change included monthly clinic staff check-ins to discuss new disclosures, quarterly team meetings to discuss strategies to improve disclosure, and modifying a clinic note template to prompt providers to document disclosure status. Annotated run charts were used to analyze the data.ResultsBefore the first PDSA cycle, 26/46 (57%) of the target population of YLWH aged ≥11 years had their HIV status disclosed to them, and none of the undisclosed youth had disclosure status documented in their medical record. After 20 months and six PDSA cycles, the proportion of YLWH aged ≥11 years disclosed to about their HIV status increased to 80% and the proportion of undisclosed YLWH with documentation of their disclosure status increased to 100%.ConclusionsSeveral interventions integrated throughout the pediatric HIV care process were associated with an increase in the proportion of YLWH with developmentally appropriate HIV disclosure and documentation of disclosure status, an important psychosocial aspect of care in these individuals. 相似文献
23.
《Journal of the American Medical Directors Association》2022,23(2):280-287
ObjectivesDevelop and evaluate the implementation of a proposed model for large-scale data-driven quality improvement in assisted living.DesignWe conducted a mixed-methods evaluation of the implementation of a large-scale data-driven quality improvement collaborative of Wisconsin assisted living communities (ALCs).Setting and ParticipantsThe model has been voluntarily implemented by 810 Wisconsin-licensed ALCs serving >20,000 residents.MethodsThe model was codesigned iteratively 2009-2012 by a public-private multistakeholder advisory group. Using system usage statistics and project records, we evaluated implementation outcomes: appropriateness, acceptability, adoption, feasibility, fidelity, penetration, and sustainability.ResultsImplementation for ≥1 quarter was feasible for 92% of the 810 ALCs that enrolled. The model has been deemed appropriate and acceptable by public-private stakeholders representing residents, providers, regulators, and payers, and appropriateness for ALCs serving different populations has been iteratively improved through targeted workgroups. The model is currently adopted in Wisconsin by 31% of the 1573 ALCs in provider associations. Among adopters, 88% on average implemented the model with fidelity to key membership rules per quarter. The model achieved demographic and institutional penetration by currently reaching 24% of Wisconsin ALC residents and by leveraging initial grant funding to become integrated in Wisconsin's annual Medicaid budget and being central to Wisconsin's incentive program to managed care organizations. Model implementation for 8 years has been sustained by member enrollment for nearly 4 years on average, with 71% of members enrolled >2 years and sustained early adopters representing 37% that have been enrolled >5 years.Conclusions and ImplicationsThis is the first implementation study of large-scale data-driven quality improvement in assisted living, despite its demonstrated value in other health care sectors. The article proposes a model with core components and implementation strategies drawing on a decade-long public-private collaboration. The implementation study findings establish a promising path and future directions for wider implementation. 相似文献
24.
《Journal of the American Medical Directors Association》2022,23(2):304-307.e3
The 2019 novel coronavirus (COVID-19) pandemic created an immediate need to enhance current efforts to reduce transfers of nursing home (NH) residents to acute care. Long-Term Care Plus (LTC+), a collaborative care program developed and implemented during the COVID-19 pandemic, aimed to enhance care in the NH setting while also decreasing unnecessary acute care transfers. Using a hub-and-spoke model, LTC+ was implemented in 6 hospitals serving as central hubs to 54 geographically associated NHs with 9574 beds in Toronto, Canada. LTC+ provided NHs with the following: (1) virtual general internal medicine (GIM) consultations; (2) nursing navigator support; (3) rapid access to laboratory and diagnostic imaging services; and (4) educational resources. From April 2020 to June 2021, LTC+ provided 381 GIM consultations that addressed abnormal bloodwork (15%), cardiac problems (13%), and unexplained fever (11%) as the most common reasons for consultation. Sixty-five nurse navigator calls addressed requests for non-GIM specialist consultations (34%), wound care assessments (14%), and system navigation (12%). One hundred seventy-seven (46%, 95% CI 41%-52%) consults addressed care concerns sufficiently to avoid the need for acute care transfer. All 36 primary care physicians who consulted the LTC+ program reported strong satisfaction with the advice provided. Early results demonstrate the feasibility and acceptability of an integrated care model that enhances care delivery for NH residents where they reside and has the potential to positively impact the long-term care sector by ensuring equitable and timely access to care for people living in NHs. It represents an important step toward health system integration that values the expertise within the long-term care sector. 相似文献
25.
26.
目的探讨完全右半肝-左半肝劈离式肝移植在成人-成人或成人-大体重儿童中的临床应用。方法回顾2019年1月至12月间首都医科大学附属北京友谊医院完成的4例完全右半肝-左半肝劈离式肝移植的供受者临床资料,分析劈离式肝移植的手术方式、冷缺血时间、手术时间、术中输血量,观察患者术后并发症及相关预后。结果4例完全右半肝-左半肝劈离式肝移植的受者包括3例成人和1例大体重儿童(45 kg),年龄范围14~48岁,体重范围45~61 kg,终末期肝病模型评分分别为21、12、41和30分。移植物质量与受者体质量比为0.85%~1.35%。冷缺血时间457~650 min,手术时长460~575 min。4例患者移植术后早期肝功能恢复顺利,均未出现小肝综合征。随访至术后6个月,其中1例出现胆道吻合口漏,经内镜逆行胰胆管造影术治疗后治愈;1例出现胆道狭窄,经皮肝穿刺胆道引流术治疗后反复胆道感染;1例术后6个月死于肺部感染。结论在严格病例选择的情况下,可以开展完全右半肝-左半肝劈离式肝移植。 相似文献
27.
Pediatric anesthesiologists practice within a culture, a system, and a society. In this article, we provide an overview of the influence these have on the well‐being or the unwellness of pediatric anesthesiologists. The scope of these issues is broad and far‐reaching; thus, our goal has been to highlight those areas which would be likely to have the largest impact on well‐being if addressed fully by society, institutions, and leaders in our field. We discuss the burnout‐promoting aspects of medical education and training. We survey occupational factors, such as the high‐stake pediatric anesthesia environment, occupational health hazards, time pressure, and the reduction in physician autonomy. We then describe societal barriers, such as the marginalization of certain populations, the US system of malpractice litigation, the stigma surrounding psychiatric care, and some of the issues related to physician reimbursement in the United States. We conclude that in order to move forward, improving physician wellness must be a focus of society, of the medical system as a whole, and of individual departments and leaders in pediatric anesthesia. 相似文献
28.
Tsukumi TONDOKORO Akinori NAKATA Yasumasa OTSUKA Nobuyuki YANAGIHARA Ayumi ANAN Hiromi KODAMA Noriaki SATOH 《Industrial health》2021,59(2):128
Although participatory workplace improvement programs are known to provide favorable effects on high stress occupations like nursing, no studies have confirmed its effect using biomarkers. The aim of this study was to determine whether a participatory workplace improvement program would decrease stress-related symptoms as evaluated by biomarkers and self-reported stress among hospital nurses. Three actions to alleviate job stress, which were determined through focus group interviews and voting, were undertaken for two months. A total of 31 female Japanese nurses underwent measurement of inflammatory markers, autonomic nervous activity (ANA), and perceived job stress (PJS) at three-time points; before the program (T1), within a week after the completion of the program (T2), and three months after the program (T3). A series of inflammatory markers (Interferon-γ, Interleukin (IL)-6, and IL-12/23p40) decreased significantly at T2, and IL-12/23p40 and IL-15 significantly decreased at T3 compared to T1, while ANA and PJS remained unchanged. Our participatory program exerted beneficial effects in reducing inflammatory responses, but not for ANA and PJS. Further investigations with a better study design, i.e., a randomized controlled trial, and a larger sample size are warranted to determine what exerted beneficial effects on inflammatory markers and why other outcomes remained unchanged. 相似文献
29.
Zeitz PS Salami CG Burnham G Goings SA Tijani K Morrow RH 《The International journal of health planning and management》1993,8(3):235-244
Introduction. Management of primary health care (PHC) systems in less developed countries is often impeded by factors such as poorly trained personnel, limited financial resources, and poor worker morale. This study explored the ability of local-level PHC supervisors in rural Nigeria to use quality assurance (QA) management methods to improve the quality of the PHC system. Methods. PHC supervisors from Bama Local Government Area were trained for 3 days in the use of QA methods and tools. The supervisors targeted the supervisory system and the health information system (HIS) for improvement. Health worker performance in diarrhoea case management was assessed, using a simulated case, to measure the impact of supervision. A HIS audit assessed data collection forms used by 17 PHC facilities. Gaps in quality were monitored over a 2-month study period and flaws in work processes were modified. Results. PHC supervisors introduced a checklist during monthly visits to facilities to monitor how workers managed cases of diarrhoea. Performance in history-taking, physical examination, disease classification, treatment and counselling improved over the evaluation period. The HIS audit found that a variety of reporting forms were used at PHC facilities. After HIS reporting was standardized, the number of health facilities using a daily disease registry significantly improved during the study period. Conclusions. QA management methods were used by PHC supervisors in Nigeria to improve supervision and the HIS. QA management methods are appropriate for improving the quality of the PHC in Nigeria and in other less developed countries where at least a minimal PHC infrastructure exists. 相似文献
30.
胰十二指肠切除术的技术改进 总被引:1,自引:0,他引:1
目的 探讨改进胰十二指肠切除术,预防术后并发症,提高手术疗效的方法。方法 采用保留幽门、胰管空肠粘膜吻合+胰肠遮盖套入式吻合、胰管支撑外流充分切除胰钩突的术式,并观察其疗效。结果 全组未发生胰瘘及胰断面出血。保留幽门胰十二批肠切除术(PPPD)者有1例术后发生胃潴留,其余胃排空正常。结论 PPPD只要操作得当,可避免术后胃潴留。胰肠遮盖套入式吻合操作简便,可防止术后胰瘘、胰断面出血等并发症。 相似文献