全文获取类型
收费全文 | 105112篇 |
免费 | 11047篇 |
国内免费 | 1376篇 |
专业分类
耳鼻咽喉 | 269篇 |
儿科学 | 3797篇 |
妇产科学 | 2145篇 |
基础医学 | 5327篇 |
口腔科学 | 1830篇 |
临床医学 | 26888篇 |
内科学 | 13143篇 |
皮肤病学 | 793篇 |
神经病学 | 3252篇 |
特种医学 | 1265篇 |
外国民族医学 | 1篇 |
外科学 | 17247篇 |
综合类 | 9811篇 |
现状与发展 | 2篇 |
一般理论 | 66篇 |
预防医学 | 17098篇 |
眼科学 | 310篇 |
药学 | 7473篇 |
134篇 | |
中国医学 | 3492篇 |
肿瘤学 | 3192篇 |
出版年
2024年 | 283篇 |
2023年 | 3314篇 |
2022年 | 4009篇 |
2021年 | 6387篇 |
2020年 | 6110篇 |
2019年 | 6154篇 |
2018年 | 5691篇 |
2017年 | 5195篇 |
2016年 | 4819篇 |
2015年 | 4670篇 |
2014年 | 8090篇 |
2013年 | 8891篇 |
2012年 | 5874篇 |
2011年 | 6167篇 |
2010年 | 4707篇 |
2009年 | 4672篇 |
2008年 | 4406篇 |
2007年 | 4429篇 |
2006年 | 3827篇 |
2005年 | 3211篇 |
2004年 | 2707篇 |
2003年 | 2149篇 |
2002年 | 1688篇 |
2001年 | 1545篇 |
2000年 | 1249篇 |
1999年 | 1066篇 |
1998年 | 893篇 |
1997年 | 710篇 |
1996年 | 672篇 |
1995年 | 522篇 |
1994年 | 487篇 |
1993年 | 419篇 |
1992年 | 342篇 |
1991年 | 314篇 |
1990年 | 258篇 |
1989年 | 226篇 |
1988年 | 172篇 |
1987年 | 174篇 |
1986年 | 136篇 |
1985年 | 156篇 |
1984年 | 146篇 |
1983年 | 87篇 |
1982年 | 96篇 |
1981年 | 86篇 |
1980年 | 65篇 |
1979年 | 66篇 |
1978年 | 44篇 |
1977年 | 43篇 |
1976年 | 34篇 |
1975年 | 27篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
73.
《Archives of physical medicine and rehabilitation》2022,103(8):1684-1692
Conducting high-quality clinical research is dependent on merging scientific rigor with the clinical environment. This is often a complex endeavor that may include numerous barriers and competing interests. Overcoming these challenges and successfully integrating clinical research programs into clinical practice settings serving rehabilitation outpatients is beneficial from both a logistical perspective (eg, supports efficient and successful research procedures) and the establishment of a truly patient-centered research approach. Leveraging our experience with navigating this research-clinical care relationship, this article (1) proposes the Patient-Centered Framework for Rehabilitation Research, a model for integrating patient-centered research in an outpatient clinical setting that incorporates a collaborative, team-based model encompassing patient-centered values, as well as strategies for recruitment and retention, with a focus on populations living with disabilities or chronic diseases; (2) describes application of this framework in a comprehensive specialty multiple sclerosis center with both general strategies and specific examples to guide adaptation and implementation in other settings; and (3) discusses the effect of the framework as a model in 1 center, as well as the need for additional investigation and adaptation for other populations. The 5 interconnected principles incorporated in the Framework and which prioritize patient-centeredness include identifying shared values, partnering with the clinical setting, engaging with the population, building relationships with individuals, and designing accessible procedures. The Patient-Centered Framework for Rehabilitation Research is a model presented as an adaptable roadmap to guide researchers in hopes of not only improving individual patients’ experiences but also the quality and relevance of rehabilitation research as a whole. Future investigation is needed to test the Framework in other settings. 相似文献
74.
75.
76.
慢性肾脏病是一种以肾脏功能的损伤为主要表现,并可累及全身多脏器的慢性进展性疾病。中医辨证治疗本病在延缓病情、改善预后等方面具有显著的优势。通过中医理论研究及临床经验总结,笔者提出从“肾毒”论治慢性肾脏病,认为其不仅是本病的致病因素,更是重要的病理产物,是本病发生发展、迁延难愈的关键。在治疗上提出以“益肾元、解肾毒”为大法,并根据不同兼夹辨证施治,采用药对,长治缓图。以“肾毒”立论拟定的经验方苏茵解毒方,在临床治疗和实验研究上均显示出明显的效果,并已制备成院内制剂临床使用,在疗效及经济效益方面均具有显著的优势。 相似文献
77.
《Pancreatology》2022,22(5):665-670
Background and objectivesHyperlipasemia is highly prevalent among coronavirus disease 2019 (COVID-19) patients. The aim of this study was to assess the effect of lipase activity, measured at the time of admission, on the clinical course and mortality in COVID-19 patients.MethodsThe population of this study comprised 12,139 patients who were hospitalized due to COVID-19 between June 2020 and June 2021 in a pandemic hospital. Of these, 8819 patients were excluded from the study due to missing data, four patients were excluded due to a diagnosis of acute pancreatitis (according to the revised Atlanta criteria), and 72 patients were excluded due to alcohol use or having a history of chronic pancreatitis. The final study sample consisted of the remaining 3244 COVID-19 patients. Laboratory results, intensive care unit (ICU) follow-up periods, the need for mechanical ventilation, and mortality rates were compared between the normal lipase activity and high lipase activity groups.ResultsThere were 968 (29.8%) patients with high lipase activity at the time of admission. The rate of ICU admission was 36.1% vs. 9.9% (p < 0.001), mechanical ventilation requirement rates were 33.7% vs. 8.3% (p < 0.001), and mortality rates were as 24.6% vs. 6.4% (p < 0.001) in the high lipase activity group compared to the normal lipase activity group. Multivariate regression analysis revealed that high lipase activity was an independent factor in predicting mortality in hospitalized COVID-19 patients (odds ratio [OR]: 3.191, p < 0.001).ConclusionElevated lipase activity without acute pancreatitis at the time of admission in COVID-19 patients was determined as an independent predictor of poor prognosis. 相似文献
78.
79.
80.