全文获取类型
收费全文 | 5876篇 |
免费 | 369篇 |
国内免费 | 51篇 |
专业分类
耳鼻咽喉 | 82篇 |
儿科学 | 247篇 |
妇产科学 | 78篇 |
基础医学 | 304篇 |
口腔科学 | 126篇 |
临床医学 | 1123篇 |
内科学 | 811篇 |
皮肤病学 | 92篇 |
神经病学 | 922篇 |
特种医学 | 104篇 |
外科学 | 435篇 |
综合类 | 455篇 |
一般理论 | 2篇 |
预防医学 | 961篇 |
眼科学 | 37篇 |
药学 | 326篇 |
2篇 | |
中国医学 | 63篇 |
肿瘤学 | 126篇 |
出版年
2023年 | 146篇 |
2022年 | 294篇 |
2021年 | 361篇 |
2020年 | 346篇 |
2019年 | 397篇 |
2018年 | 396篇 |
2017年 | 305篇 |
2016年 | 222篇 |
2015年 | 187篇 |
2014年 | 484篇 |
2013年 | 599篇 |
2012年 | 293篇 |
2011年 | 427篇 |
2010年 | 270篇 |
2009年 | 269篇 |
2008年 | 279篇 |
2007年 | 196篇 |
2006年 | 144篇 |
2005年 | 114篇 |
2004年 | 105篇 |
2003年 | 83篇 |
2002年 | 66篇 |
2001年 | 61篇 |
2000年 | 42篇 |
1999年 | 34篇 |
1998年 | 18篇 |
1997年 | 33篇 |
1996年 | 17篇 |
1995年 | 19篇 |
1994年 | 14篇 |
1993年 | 15篇 |
1992年 | 10篇 |
1991年 | 4篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 3篇 |
1987年 | 3篇 |
1986年 | 3篇 |
1985年 | 3篇 |
1984年 | 3篇 |
1982年 | 2篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1973年 | 2篇 |
排序方式: 共有6296条查询结果,搜索用时 15 毫秒
61.
62.
63.
BackgroundThe clinical process for being evaluated for an autism diagnosis is often time consuming and stressful for individuals and their caregivers. While experience of and satisfaction with the diagnostic process has been reviewed in the literature, few studies have directly investigated the viewpoints of individuals diagnosed with autism and caregivers of autistic individuals about what is important in the autism diagnostic process.MethodA Q methodological design was employed to capture the subjective viewpoints about the diagnostic process of individuals on the autism spectrum and caregivers of autistic individuals. Thirty-eight participants responded to a set of 66 statements representing different aspects of the autism diagnostic process.ResultsThe analysis identified three significant viewpoints: Get it Right, Make it Easy, and See it All. Participants reflected upon the importance of a comprehensive diagnostic assessment process, ease of diagnostic processes, and a holistic approach to autism diagnosis for autistic individuals and caregivers of autistic individuals.ConclusionsThe findings provide a consumer perspective that encourages reform of the current process for diagnosing autism in Australia, and an insight into what consumers are wanting from diagnostic services. This information is useful for policy-makers and service providers to create a more supportive and client-centred diagnostic process at all levels of service delivery. 相似文献
64.
Kurt J. Pfeifer Angela Selzer Carlos E. Mendez Christopher M. Whinney Barbara Rogers Vinaya Simha Dennis Regan Richard D. Urman Karen Mauck 《Mayo Clinic proceedings. Mayo Clinic》2021,96(6):1655-1669
Perioperative medical management is challenging due to the rising complexity of patients presenting for surgical procedures. A key part of preoperative optimization is appropriate management of long-term medications, yet guidelines and consensus statements for perioperative medication management are lacking. Available resources utilize the recommendations derived from individual studies and do not include a multidisciplinary focus or formal consensus. The Society for Perioperative Assessment and Quality Improvement (SPAQI) identified a lack of authoritative clinical guidance as an opportunity to utilize its multidisciplinary membership to improve evidence-based perioperative care. SPAQI seeks to provide guidance on perioperative medication management that synthesizes available literature with expert consensus. The aim of this Consensus Statement is to provide practical guidance on the preoperative management of endocrine, hormonal, and urologic medications. A panel of experts with anesthesiology, perioperative medicine, hospital medicine, general internal medicine, and medical specialty experience was drawn together and identified the common medications in each of these categories. The authors then utilized a modified Delphi approach to critically review the literature and generate consensus recommendations. 相似文献
65.
Medium term post-bariatric surgery deficit of vitamin B12 is predicted by deficit at time of surgery
66.
67.
68.
69.
Combining 2 Commonly Adopted Nutrition Instruments in the Critical Care Setting Is Superior to Administering Either One Alone 下载免费PDF全文
Charles Chin Han Lew APD CNSC B Nutr Diet Ka Po Cheung APD M Nutr Diet Mary Foong Fong Chong PhD Ai Ping Chua MBBS MMed Robert J. L. Fraser MBBS FRACP PhD Michelle Miller Adv APD PhD 《JPEN. Journal of parenteral and enteral nutrition》2018,42(5):872-876
Background: This study aimed to determine the agreement between the modified Nutrition Risk in Critically ill Score (mNUTRIC) and the Subjective Global Assessment (SGA) and compare their ability in discriminating and quantifying mortality risk independently and in combination. Methods: Between August 2015 and October 2016, all patients in a Singaporean hospital received the SGA within 48 hours of intensive care unit admission. Nutrition status was dichotomized into presence or absence of malnutrition. The mNUTRIC of patients was retrospectively calculated at the end of the study, and high mNUTRIC was defined as scores ≥5. Results: There were 439 patients and 67.9% had high mNUTRIC, whereas only 28% were malnourished. Hospital mortality was 29.6%, and none was lost to follow‐up. Although both tools had poor agreement (κ statistics: 0.13, P < .001), they had similar discriminative value for hospital mortality (C‐statistics [95% confidence interval (CI)], 0.66 [0.62–0.70] for high mNUTRIC and 0.61 [0.56–0.66] for malnutrition, P = .12). However, a high mNUTRIC was associated with higher adjusted odds for hospital mortality compared with malnutrition (adjusted odds ratio [95% CI], 5.32 [2.15–13.17], P < .001, and 4.27 [1.03–17.71], P = .046, respectively). Combination of both tools showed malnutrition and high mNUTRIC were associated with the highest adjusted odds for hospital mortality (14.43 [5.38–38.78], P < .001). Conclusion: The mNUTRIC and SGA had poor agreement. Although they individually provided a fair discriminative value for hospital mortality, the combination of these approaches is a better discriminator to quantify mortality risk. 相似文献
70.