全文获取类型
收费全文 | 39687篇 |
免费 | 2638篇 |
国内免费 | 97篇 |
专业分类
耳鼻咽喉 | 452篇 |
儿科学 | 1450篇 |
妇产科学 | 954篇 |
基础医学 | 4844篇 |
口腔科学 | 490篇 |
临床医学 | 6564篇 |
内科学 | 6976篇 |
皮肤病学 | 407篇 |
神经病学 | 3814篇 |
特种医学 | 830篇 |
外国民族医学 | 2篇 |
外科学 | 3726篇 |
综合类 | 367篇 |
一般理论 | 49篇 |
预防医学 | 5562篇 |
眼科学 | 435篇 |
药学 | 2445篇 |
中国医学 | 44篇 |
肿瘤学 | 3011篇 |
出版年
2024年 | 30篇 |
2023年 | 325篇 |
2022年 | 455篇 |
2021年 | 863篇 |
2020年 | 616篇 |
2019年 | 949篇 |
2018年 | 1118篇 |
2017年 | 834篇 |
2016年 | 870篇 |
2015年 | 965篇 |
2014年 | 1352篇 |
2013年 | 2128篇 |
2012年 | 3064篇 |
2011年 | 3263篇 |
2010年 | 1731篇 |
2009年 | 1571篇 |
2008年 | 2826篇 |
2007年 | 2825篇 |
2006年 | 2789篇 |
2005年 | 2742篇 |
2004年 | 2521篇 |
2003年 | 2242篇 |
2002年 | 2144篇 |
2001年 | 288篇 |
2000年 | 247篇 |
1999年 | 300篇 |
1998年 | 448篇 |
1997年 | 345篇 |
1996年 | 264篇 |
1995年 | 215篇 |
1994年 | 217篇 |
1993年 | 210篇 |
1992年 | 148篇 |
1991年 | 126篇 |
1990年 | 109篇 |
1989年 | 128篇 |
1988年 | 110篇 |
1987年 | 98篇 |
1986年 | 93篇 |
1985年 | 93篇 |
1984年 | 106篇 |
1983年 | 82篇 |
1982年 | 93篇 |
1981年 | 109篇 |
1980年 | 77篇 |
1979年 | 51篇 |
1978年 | 31篇 |
1977年 | 41篇 |
1976年 | 24篇 |
1975年 | 28篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
982.
Karen Ruby Lionel Jacob John Nagamani Sen 《Indian Journal of Critical Care Medicine》2014,18(1):21-25
Background and Aim:
Although large studies have demonstrated the association between hyperglycemia and adverse intensive care unit (ICU) outcomes, it is yet unclear which subset of patients benefit from tight sugar control in ICU. Recent evidence suggests that stress induced hyperglycemia (SIH) and co-incidentally detected diabetes mellitus are different phenomena with different prognoses. Differentiating SIH from diabetic hyperglycemia is challenging in ICU settings. We followed a cohort of trauma patients admitted to a surgical intensive care unit (SICU) to evaluate if initial glycated hemoglobin A (HbA1c) level predicts the outcome of admission.Materials and Methods:
A cohort of 120 consecutive admissions to SICU following trauma were recruited and admission blood sugar and HbA1c were measured. Outcomes were prospectively measured by blinded ICU doctors. A logistic regression model was developed to assess if HbA1c predicts poor outcomes in these settings.Results:
Nearly 24% of the participants had HbA1c ≥ 6. Those with HbA1c ≥ 6 had 3.14 times greater risk of poor outcome at the end of hospital stay when compared to those with HbA1c < 6 and this risk increased to an odds ratio of 4.57 on adjusting for other significant predictors: Acute Physiology and Chronic Health Evaluation II, injury severity score, admission blood sugar and age at admission.Conclusions:
Substantial proportion of trauma admissions has underlying diabetes. HbA1c, a measure of pre admission glycaemic status is an important predictor of ICU outcome in trauma patients. 相似文献983.
Aileen K. Wang Shweta Sharma Paul Kim Karen Mrejen-Shakin 《Indian Journal of Critical Care Medicine》2014,18(7):456-460
We report a case of symptomatic hypomagnesaemia in medical intensive care unit that is strongly related to proton pump inhibitors (PPIs) and provide literature review. A 65-year-old male with severe gastroesophageal reflux on omeprazole 20 mg orally twice a day, who presented to the hospital with abdominal pain, nausea, diarrhea, and new onset seizures. On admission, his serum magnesium level was undetectable. Electrocardiogram showed a new right bundle branch block with a prolonged QT interval. The hypomagnesemia was corrected with aggressive magnesium supplementation and hypomagnesemia resolved only after the PPI was stopped. Neurologic and cardiac abnormalities were corrected. This is a life-threatening case of an undetectable magnesium level strongly associated with PPI use. In critically, ill patients with refractory hypomagnesemia, we advocate considering changing gastrointestinal prophylaxis from a PPI to a histamine-receptor blocker. 相似文献
984.
985.
Cheng Pei Mark Barbour Karen J. Fairlie‐Clarke Debbie Allan Rong Mu Hui‐Rong Jiang 《Immunology》2014,141(1):9-17
Interleukin‐33 (IL‐33) is a member of the IL‐1 cytokine family. It predominantly induces type 2 immune responses and thus is protective against atherosclerosis and nematode infections but contributes to allergic airway inflammation. Interleukin‐33 also plays a pivotal role in the development of many autoimmune diseases through mechanisms that are still not fully understood. In this review, we focus on the recent advances in understanding of the expression and function of IL‐33 in some autoimmune disorders, aiming to provide insight into its potential role in disease development. 相似文献
986.
987.
988.
Heiko Sic Helene Kraus Josef Madl Karl-Andreas Flittner Audrey Lilly von Münchow Kathrin Pieper Marta Rizzi Anne-Kathrin Kienzler Korcan Ayata Sebastian Rauer Burkhard Kleuser Ulrich Salzer Meike Burger Katja Zirlik Vassilios Lougaris Alessandro Plebani Winfried Römer Christoph Loeffler Samantha Scaramuzza Anna Villa Emiko Noguchi Bodo Grimbacher Hermann Eibel 《The Journal of allergy and clinical immunology》2014
989.
Kathrin Pieper Marta Rizzi Matthaios Speletas Cristian R. Smulski Heiko Sic Helene Kraus Ulrich Salzer Gina J. Fiala Wolfgang W. Schamel Vassilios Lougaris Alessandro Plebani Lennart Hammarstrom Mike Recher Anastasios E. Germenis Bodo Grimbacher Klaus Warnatz Antonius G. Rolink Pascal Schneider Luigi D. Notarangelo Hermann Eibel 《The Journal of allergy and clinical immunology》2014