全文获取类型
收费全文 | 4648篇 |
免费 | 281篇 |
国内免费 | 11篇 |
专业分类
耳鼻咽喉 | 41篇 |
儿科学 | 126篇 |
妇产科学 | 84篇 |
基础医学 | 600篇 |
口腔科学 | 367篇 |
临床医学 | 350篇 |
内科学 | 1123篇 |
皮肤病学 | 123篇 |
神经病学 | 291篇 |
特种医学 | 188篇 |
外科学 | 493篇 |
综合类 | 29篇 |
预防医学 | 450篇 |
眼科学 | 75篇 |
药学 | 380篇 |
中国医学 | 42篇 |
肿瘤学 | 178篇 |
出版年
2023年 | 38篇 |
2022年 | 24篇 |
2021年 | 133篇 |
2020年 | 100篇 |
2019年 | 140篇 |
2018年 | 141篇 |
2017年 | 116篇 |
2016年 | 126篇 |
2015年 | 136篇 |
2014年 | 167篇 |
2013年 | 252篇 |
2012年 | 334篇 |
2011年 | 334篇 |
2010年 | 202篇 |
2009年 | 152篇 |
2008年 | 281篇 |
2007年 | 285篇 |
2006年 | 246篇 |
2005年 | 206篇 |
2004年 | 178篇 |
2003年 | 135篇 |
2002年 | 118篇 |
2001年 | 113篇 |
2000年 | 113篇 |
1999年 | 87篇 |
1998年 | 42篇 |
1997年 | 52篇 |
1996年 | 44篇 |
1995年 | 39篇 |
1994年 | 35篇 |
1993年 | 28篇 |
1992年 | 54篇 |
1991年 | 43篇 |
1990年 | 53篇 |
1989年 | 39篇 |
1988年 | 42篇 |
1987年 | 33篇 |
1986年 | 28篇 |
1985年 | 25篇 |
1984年 | 21篇 |
1983年 | 20篇 |
1982年 | 20篇 |
1981年 | 11篇 |
1980年 | 13篇 |
1979年 | 10篇 |
1978年 | 11篇 |
1975年 | 9篇 |
1970年 | 11篇 |
1969年 | 19篇 |
1968年 | 11篇 |
排序方式: 共有4940条查询结果,搜索用时 31 毫秒
1.
Sílvia Aguiar Rosa Pedro Silva Cunha Ana Lousinha Bruno Valente Ana Sofia Delgado Ricardo Pimenta Manuel Brás Madalena Coutinho Cruz Guilherme Portugal André Viveiros Monteiro Mário Oliveira Rui Cruz Ferreira 《Revista portuguesa de cardiologia》2019,38(1):11-16
Introduction
Implantable cardioverter-defibrillator (ICD) monitoring zones (MZ) provide passive features that do not interfere with the functioning of active treatment zones. However, it is not known for certain whether programming an MZ affects arrhythmia detection by the ICD. The aim of the present study is to assess the clinical relevance of MZ in a population of patients with ICDs.Methods
In this retrospective analysis of patients with ICDs, with or without cardiac resynchronization therapy, for primary prevention under remote monitoring, the MZ was analyzed and recorded arrhythmias were assessed in detail.Results
A total of 221 patients were studied (77% men; age 64±12 years). Mean ejection fraction was 30±12%. The mean follow-up was 63±35 months. One hundred and seventy-four MZ events were documented in 139 patients (62.9%): 74 of non-sustained ventricular tachycardia (NSVT), 42 of supraventricular tachycardia, 44 of atrial fibrillation/atrial flutter, and five cases of noise. Among the 137 patients who presented with arrhythmias in the MZ (excluding two cases with noise detection only), 22 (16.1%) received appropriate shocks and/or antitachycardia pacing (ATP), while of the other 84 patients, 15.5% received appropriate ICD treatment (p=NS). In patients who presented with NSVT in the MZ, 15 (20.5%) received appropriate shocks and/or ATP. In accordance with the MZ findings, physicians decided to change outpatient medication in 41.7% of all patients in whom arrhythmic events were reported.Conclusion
Ventricular and supraventricular arrhythmias are common findings in the MZ of ICD patients. Programming an MZ is valuable in the diagnosis of arrhythmias and may be a useful tool in clinical practice. 相似文献2.
3.
4.
5.
6.
Leal Rato Miguel Nunes Vicente Beatriz da Cunha Maria Ribeiro Marques Tiago Aguiar de Sousa Diana Canhão Patrícia 《Journal of neurovirology》2020,26(5):805-807
Journal of NeuroVirology - Herpes simplex virus 2 (HSV-2) is a very rare cause of central nervous system (CNS) infections. We report a case of a young woman with a left middle cerebral artery (MCA)... 相似文献
7.
Adriana Cunha VargasCatia Dell AgnoloWillian Augusto de MeloFernando Castilho PellosoLander dos SantosMaria Dalva de Barros CarvalhoSandra Marisa Pelloso 《Asian Pacific journal of cancer prevention》2020,21(1):55-62
Objective: This study aimed to analyze the trend in cervical cancer (ICD C53) mortality in Brazilian regions in women who are who are screened and not screened from 1996 to 2015. Methods: An epidemiological study, of time series of mortality from cervical cancer performed in 90,856 women under 24 years old (343 women), between 25 and 64 years old (32,703 women), and over 65 years old (10,909 women). The data from this research were collected from the DATASUS, from the SIM Health Surveillance Secretariat files, captured through TABNET selecting the resident population by gender and age group and ICD 10 C53 from 1996 to 2015. Results: Among women, 43.8% were white, and 76% had less than eight years of formal education. Polynomial regression showed an increasing trend in cervical cancer mortality in Brazil for women aged 15 - 24 years (p=0.01). Between 25 - 64 and 65 years or older it remained constant, but high (p=0.07; 0.99). The Northeast region pointed a growing trend in women aged 15 to 24 (p=0.01), 25 to 64 years (p=0.01) and 65 or older (p=0.001). The Northeast presented the highest average growth per year. In the Southeast, South and Midwest regions, decreasing trends were observed despite the high rates. The Joinpoint regression showed a 95% confidence interval, and that mortality from cervical cancer in the North region increased throughout the period analyzed. an increasing trend was observed from 1996 to 1998, whereas in the Midwest region, the trend remained stable throughout the period analyzed. The Federal District presented an upward trend from 1996 to 2015. In Brazil, an upward trend was observed throughout the whole period analyzed. Conclusions: Cervical cancer mortality in younger women is becoming more predominant, in addition to the high rate observed for women aged 65 or older. 相似文献
8.
9.
10.
Amanda Leal Rocha Alessandra Figueiredo De Souza Laiz Fernandes Mendes Nunes Nayara Dias de Souza Cunha Clia Regina Moreira Lanza Denise Vieira Travassos Tarcília Aparecida da Silva 《Pediatric dermatology》2019,36(1):e27-e30
Drug‐induced reactions are complications associated with high mortality and significant morbidity. Stevens–Johnson Syndrome (SJS) and toxic epidermal necrolysis (TEN) are examples of these conditions, which are characterized by skin and mucous lesions. Here, we report a case of a 9‐year‐old girl who presented with blisters associated with an extensive vesicular rash and multiple ulcerations on the lips and oral cavity. A drug‐induced hypersensitivity reaction to antibiotics was suspected, and a diagnosis of TEN was made. The patient was managed with withdrawal of the suspected causative agent, and the oral lesions were treated with low‐level laser therapy (LLLT) and oral hygiene. This case highlights that TEN requires interdisciplinary intervention with dental assistance and follow‐up to improve symptoms, nutrition, systemic condition, and quality of life. 相似文献