全文获取类型
收费全文 | 210篇 |
免费 | 20篇 |
国内免费 | 8篇 |
专业分类
儿科学 | 14篇 |
妇产科学 | 2篇 |
基础医学 | 14篇 |
口腔科学 | 1篇 |
临床医学 | 41篇 |
内科学 | 40篇 |
神经病学 | 25篇 |
特种医学 | 7篇 |
外科学 | 26篇 |
综合类 | 28篇 |
预防医学 | 10篇 |
眼科学 | 1篇 |
药学 | 22篇 |
1篇 | |
中国医学 | 2篇 |
肿瘤学 | 4篇 |
出版年
2023年 | 4篇 |
2022年 | 24篇 |
2021年 | 25篇 |
2020年 | 24篇 |
2019年 | 21篇 |
2018年 | 4篇 |
2017年 | 4篇 |
2016年 | 6篇 |
2015年 | 16篇 |
2014年 | 19篇 |
2013年 | 21篇 |
2012年 | 7篇 |
2011年 | 8篇 |
2010年 | 9篇 |
2009年 | 6篇 |
2008年 | 4篇 |
2007年 | 11篇 |
2006年 | 4篇 |
2005年 | 4篇 |
2003年 | 1篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 3篇 |
1999年 | 1篇 |
1996年 | 1篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1991年 | 2篇 |
1983年 | 1篇 |
排序方式: 共有238条查询结果,搜索用时 62 毫秒
11.
12.
《Academic pediatrics》2023,23(5):971-979
Objective and BackgroundLittle is known about pediatric psychotropic medication use in the emergency department (ED), despite a rise in mental and behavioral health visits. This study describes psychotropic medication use in a nationally representative sample of pediatric mental and behavioral health ED visits over a 14-year period.MethodsWe conducted a cross-sectional analysis of pediatric (6–17 years) mental and behavioral health ED visits using the National Hospital Ambulatory Medical Care Survey, 2006–2019. We describe administration of psychotropic medications by medication type, diagnosis, and over time. Using multivariable survey-weighted logistic regression, we examine associations between medication administration and sociodemographics.ResultsA psychotropic medication was administered in 11.4% of the estimated 11,792,860 pediatric mental and behavioral health ED visits in our sample. Benzodiazepines were administered most frequently (4.9% of visits). Visits with anxiety disorders had the highest frequency of psychotropic medication use (26.7%). Visits by Black non-Hispanic patients had a 60% decreased odds of medication administration compared to visits for White non-Hispanic patients. Visits with public compared to private insurance had a 3.5 times increased odds of psychotropic polypharmacy. The proportion of visits in which a psychotropic medication was administered did not change statistically over time.ConclusionsA psychotropic medication was administered in 1 in 10 pediatric mental and behavioral health ED visits. Use differed by sociodemographics but did not change over time. As more youth seek mental and behavioral health care in the ED, we must better understand appropriate medication use to ensure quality and equitable care. 相似文献
13.
Antonella Maimone Antonella De Ceglie Peter D. Siersema Todd H. Baron Massimo Conio 《Clinics and research in hepatology and gastroenterology》2021,45(6):101592
The clinical and endoscopic features of colon ischemia (CI) are non-specific. CI is correctly identified at the time of presentation in only 9% of patients is. The true incidence is likely underestimated because many mild cases resolve spontaneously without medical treatment. Furthermore, since most cases of CI are transient, and no specific cause is detected they are often considered to be “idiopathic”. In the setting of severe CI correct diagnosis and prompt recognition and therapy as well as identification of underlying causes are crucial for a favourable outcome. Although less severe, mild cases may present with similar symptoms, the prognosis and management are completely different and managed conservatively rather than with surgery. Unfortunately, data from most studies and current guidelines do not provide recommendations on the long-term management of CI or about the need for endoscopic follow-up to detect the development chronic, recurrent and/or ischemic colonic strictures. In this review, we focus on the definition of CI, its aetiology, and patterns of presentation. We highlight the pharmacological and/or endoscopic management as determined severity of disease that allow for improved outcomes. Prompt recognition and treatment using a multidisciplinary approach are essential for successful management of severe CI because mortality rates are significantly higher when the diagnosis is delayed. 相似文献
14.
《The Journal of infection》2020,80(6):e1-e13
15.
M. D. Wang W. H. Fan W. S. Qiu Z. L. Zhang Y. N. Mo F. Qiu 《European journal of trauma and emergency surgery》2014,40(3):287-294
Purpose
We present here the exponential function which transforms the Abbreviated Injury Scale (AIS). It is called the Exponential Injury Severity Score (EISS), and significantly outperforms the venerable but dated New Injury Severity Score (NISS) and Injury Severity Score (ISS) as a predictor of mortality.Methods
The EISS is defined as a change of AIS values by raising each AIS severity score (1–6) by 3 taking a power of AIS minus 2 and then summing the three most severe injuries (i.e., highest AIS), regardless of body regions. EISS values were calculated for every patient in two large independent data sets: 3,911 and 4,129 patients treated during a 6-year period at the Class A tertiary hospitals in China. The power of the EISS to predict mortality was then compared with previously calculated NISS values for the same patients in each of the two data sets.Results
We found that the EISS is more predictive of survival [Zhejiang: area under the receiver operating characteristic curve (AUC): NISS = 0.932, EISS = 0.949, P = 0.0115; Liaoning: AUC: NISS = 0.924, EISS = 0.942, P = 0.0139]. Moreover, the EISS provides a better fit throughout its entire range of prediction (Hosmer–Lemeshow statistic for Zhejiang: NISS = 21.86, P = 0.0027, EISS = 13.52, P = 0.0604; Liaoning: NISS = 23.27, P = 0.0015, EISS = 15.55, P = 0.0164).Conclusions
The EISS may be used as the standard summary measure of human trauma. 相似文献16.
C. M. Lofthus F. Frihagen H. E. Meyer L. Nordsletten K. Melhuus J. A. Falch 《Osteoporosis international》2008,19(6):781-786
Summary The population of Oslo has the highest incidence of hip fracture reported. The present study shows that the overall incidence
of distal forearm fractures in Oslo is higher than in other countries and has not changed significantly when comparing the
incidence of 1998/99 with 1979.
Introduction The population of Oslo has the highest incidence of hip fracture reported. The present study reports the incidence of distal
forearm fracture in Oslo and the fracture rates of immigrants.
Methods Patients aged ≥20 years resident in Oslo sustaining a distal forearm fracture in a one-year period in 1998/99 were identified
using electronic diagnosis registers, patient protocols, and/or X-ray registers of the clinics in Oslo. Medical records were
obtained and the diagnosis verified. The age- and sex-specific incidence rates were calculated and compared with those for
1979. Data on immigrant category and country of origin of the patients were obtained.
Results The age-adjusted fracture rates per 10,000 for the age group ≥50 years were 109.8 and 25.4 in 1998/99 compared with 108.3
and 23.5 in 1979 for women and men, respectively (n.s.). The relative risk of fracture in Asians was 0.72 (95% CI 0.53–1.00)
compared with ethnic Norwegians.
Conclusions The overall incidence of distal forearm fractures in Oslo is higher than in other countries and has not changed significantly
when comparing the incidence of 1998/99 with 1979. Furthermore, the present data suggest that Asian immigrants in Oslo have
a slightly lower fracture risk than ethnic Norwegians. 相似文献
17.
Sudha Jayaraman Jacqueline R. Mabweijano Michael S. Lipnick Nolan Caldwell Justin Miyamoto Robert Wangoda Cephas Mijumbi Renee Hsia Rochelle Dicker Doruk Ozgediz 《World journal of surgery》2009,33(12):2512-2521
Background
Uganda currently has no organized prehospital emergency system. We sought to measure the current burden of injury seen by lay people in Kampala, Uganda and to determine the feasibility of a lay first-responder training program. 相似文献18.
19.
Yuki Nakamura Masaru Shimizu Taeka Yamaki Kohsuke Kushimoto Ayahiro Yamashita Kazuma Hayase Masaki Yamazaki Satoru Hashimoto Bon Ohta 《Journal of infection and chemotherapy》2021,27(2):364-368
IntroductionCoronavirus disease (COVID-19) can lead to severe disease or death and is characterized by a wide range of mild to severe symptoms. In addition to the lungs, studies have reported the involvement of the stomach, intestine, and angiotensin-converting enzyme 2 receptors in the heart.Case reportWe present a case of a patient with COVID-19 who died soon after developing multi-organ failure and myocardial injury due to COVID-19-associated pneumonia. A 71-year-old man who contracted COVID-19 was admitted to the hospital after presenting with fever for 7 days and developed dyspnea. Following treatment, his respiratory status worsened. Thus, he was transferred to our hospital for intensive care on day 11. Physical examination revealed fever, dyspnea, respiratory distress, and no chest pain. Invasive positive pressure ventilation was initiated for acute respiratory distress syndrome on day 14. On day 15, we observed renal, liver, and coagulation dysfunction, indicating multi-organ failure. Chest radiography did not show clear signs of an increased cardiothoracic ratio or pulmonary congestion. An electrocardiogram (ECG) showed signs of myocardial infarction, which was confirmed by elevated troponin I and creatine kinase levels. The patient's circulatory dynamics did not improve on medication, and he died on day 16.ConclusionsWe report the case of a patient with severe COVID-19 who died from an exacerbation of myocardial injury. Clinicians should not only evaluate respiration but also assess the heart by performing a 12-lead ECG, echocardiogram, and myocardial injury marker examination. Together, these tools can help predict which patients will develop severe COVID-19. 相似文献
20.
A total of 139 patients had transthoracic pacemakers introduced via a subxiphoid approach for asystole during advanced CPR in the emergency department of a large urban teaching hospital over a calendar year. Two groups were examined retrospectively, A) 34 patients who presented asystolic, and B) 99 patients who presented with ventricular fibrillation that became asystole. Age, sex, and etiologies for cardiac arrest were similar in both groups; there were no survivors. The mean duration of asystole before pacemaker insertion was 4 min (group A) to 7 min (group B). Temporary electrical capture was obtained in six patients from group B, but electrical-mechanical association could not be achieved in any of these patients. 相似文献