全文获取类型
收费全文 | 4914篇 |
免费 | 193篇 |
国内免费 | 28篇 |
专业分类
耳鼻咽喉 | 81篇 |
儿科学 | 119篇 |
妇产科学 | 175篇 |
基础医学 | 481篇 |
口腔科学 | 73篇 |
临床医学 | 354篇 |
内科学 | 1364篇 |
皮肤病学 | 91篇 |
神经病学 | 663篇 |
特种医学 | 145篇 |
外科学 | 671篇 |
综合类 | 10篇 |
一般理论 | 2篇 |
预防医学 | 155篇 |
眼科学 | 143篇 |
药学 | 242篇 |
中国医学 | 22篇 |
肿瘤学 | 344篇 |
出版年
2023年 | 48篇 |
2022年 | 92篇 |
2021年 | 149篇 |
2020年 | 97篇 |
2019年 | 106篇 |
2018年 | 146篇 |
2017年 | 95篇 |
2016年 | 123篇 |
2015年 | 121篇 |
2014年 | 197篇 |
2013年 | 234篇 |
2012年 | 369篇 |
2011年 | 352篇 |
2010年 | 213篇 |
2009年 | 205篇 |
2008年 | 330篇 |
2007年 | 289篇 |
2006年 | 268篇 |
2005年 | 278篇 |
2004年 | 230篇 |
2003年 | 229篇 |
2002年 | 202篇 |
2001年 | 68篇 |
2000年 | 66篇 |
1999年 | 69篇 |
1998年 | 41篇 |
1997年 | 31篇 |
1996年 | 33篇 |
1995年 | 38篇 |
1994年 | 31篇 |
1993年 | 17篇 |
1992年 | 39篇 |
1991年 | 51篇 |
1990年 | 24篇 |
1989年 | 30篇 |
1988年 | 27篇 |
1987年 | 14篇 |
1986年 | 17篇 |
1985年 | 19篇 |
1984年 | 23篇 |
1983年 | 18篇 |
1982年 | 8篇 |
1981年 | 10篇 |
1980年 | 13篇 |
1979年 | 11篇 |
1978年 | 7篇 |
1977年 | 6篇 |
1975年 | 5篇 |
1974年 | 8篇 |
1972年 | 4篇 |
排序方式: 共有5135条查询结果,搜索用时 15 毫秒
91.
Pasquale Parisi Pasquale Striano Alberto Verrotti Maria Pia Villa Vincenzo Belcastro 《Seizure》2013,22(4):253-258
PurposeThe case report published in this issue by Wang et al. offers us an opportunity to review previously published “ictal epileptic headache” cases and draw attention to the criteria that have recently been published for this condition, taking into consideration not only the clinical-EEG and physiopathogenetic investigations required to diagnose this condition, but also the therapeutic aspects of the issue.MethodsTo this aim we reviewed all well-documented cases that have been reported in the literature.ResultsThe relationship between headache and seizures is somewhat complicated. Although the nature of this association is not yet fully clear, several plausible explanations have been proposed. Further experimental and clinical investigations are, however, warranted to gain a better understanding of this relationship. Epilepsy and idiopathic headache/migraine share several pathophysiological mechanisms; a better understanding of these mechanisms will allow us to more accurately to assess the “real burden” and prevalence of the “ictal epileptic headache” phenomenon and its therapeutic implications.ConclusionsThe development of animal models and molecular studies and, above all, multicenter clinical studies conducted according to the proposed IEH criteria represent the starting point for a definitive international consensus on this intriguing topic. In addition, to improve the recognition of ictal epileptic headache, we should encourage the use of EEG recording in the emergency setting. 相似文献
92.
Mediastinal Germ Cell Tumors in Pediatric Patients: A Report From the Italian Association of Pediatric Hematology and Oncology 下载免费PDF全文
93.
Carmelo Libetta Pasquale Esposito Claudia Martinelli Fabrizio Grosjean Marilena Gregorini Teresa Rampino Antonio Dal Canton 《Clinical and experimental nephrology》2016,20(3):371-378
Hepatocyte growth factor (HGF) is a pleiotropic cytokine which exerts a variety of effects on several cells, being involved in the regulation of many biological processes, such as inflammation, tissue repair, morphogenesis, angiogenesis, tumour propagation, immunomodulation of viral infections and cardio-metabolic activities. Patients undergoing regular hemodialysis (HD) present elevated levels of HGF, mainly due to the leukocyte activation associated with HD treatment. High HGF levels might account for specific clinical features of HD patients, i.e. mild liver damage in course of HCV-infection and high cardiovascular risk profile. Moreover, in patients with acute kidney injury, the induction of HGF may represent a crucial step to promote renal recovery, which can have important prognostic consequences in the short and long-term. In this review we discuss the mechanisms underlying HGF production in HD patients, the role of HGF in this particular patient population and the potential clinical implications derived from the study of HGF in HD patients. 相似文献
94.
Reconstruction after skin cancer excision through a dermal induction template: our experience 下载免费PDF全文
Maria G Onesti Pasquale Fino Paolo Fioramonti Vittoria Amorosi Nicolò Scuderi 《International wound journal》2016,13(2):198-203
Dermal substitutes offer alternative approaches for wounds of all thicknesses where sufficient donation sites are not available for self‐grafts. Several dermal substitutes are described in literature. This study included 20 patients treated with a dermal induction template after the removal of malignant skin cancers situated in various parts of the body. The participants were especially aged patients with multiple skin cancers, and complex clinical conditions, often affected by pathologies such as cardiopathy, diabetes mellitus, and hypercholesterolaemia, and receiving pharmacological multi‐therapies, particularly antiplatelets and anticoagulants. In many of these patients, the general complex clinical picture provided significant contraindication for complex reconstructive surgery because of the high risk involved. All patients achieved complete healing about 8 weeks after the first surgery. By using a dermal induction template, it was possible to cover substantial loss of substances without the need of autologous tissue, with smoother and less apparent scar, minor occurrence of hypertrophic and retracted scars, better flexibility of healed skin and therefore a better result from an aesthetic point of view. 相似文献
95.
Annamaria Mascolo Pasquale Maria Berrino Pietro Gareri Alberto Castagna Annalisa Capuano Ciro Manzo Liberato Berrino 《Inflammopharmacology》2018,26(5):1141-1149
Little is known about the development of psychosis during hydroxychloroquine (HCQ) treatment, especially in elderly patients affected by rheumatic diseases, with multiple comorbidities and treatments. To summarize the available evidence on HCQ-induced psychosis in elders, we performed a literature review. Additionally, individual case safety reports sent to the European Pharmacovigilance database (EudraVigilance) with HCQ as suspected drug and related to adverse events belonging to the System Organ Class ‘Psychiatric disorders’ were shown. Over the years, evidence was published about the risk of neuropsychiatric clinical manifestations during HCQ treatment for rheumatic diseases, but few of them were related to elderly patients. These adverse events can include less severe clinical manifestations such as affect lability and nervousness or more severe conditions such as actual psychosis and suicidal tendencies, which frequency are actually unknown. The presence of risk factors in these patients may precipitate HCQ-induced psychosis and their precocious detection could be associated with a risk minimization. Among predisposing risk factors, there are the co-exposure to interacting drugs, alcohol intake, familial history of psychiatric diseases, female gender, and the concomitant use of low-dose glucocorticoids. In some cases it was possible to reverse psychotic behaviour with the antipsychotic treatment or with HCQ suspension. 相似文献
96.
97.
Raffaele Serra Umberto M. Bracale Andrea Barbetta Nicola Ielapi Noemi Licastro Alessandro Gallo Salvatore Fregola Davide Turchino Vincenzo Gasbarro Pasquale Mastroroberto Stefano de Franciscis 《International wound journal》2020,17(4):987-991
Peripheral arterial disease (PAD) and its most severe form, critical limb ischaemia (CLI), are very common clinical conditions related to atherosclerosis and represent the major causes of morbidity, mortality, disability, and reduced quality of life (QoL), especially for the onset of ischaemic chronic leg ulcers (ICLUs) and the subsequent need of amputation in affected patients. Early identification of patients at risk of developing ICLUs may represent the best form of prevention and appropriate management. In this study, we used a Prediction System for Chronic Leg Ulcers (PredyCLU) based on fuzzy logic applied to patients with PAD. The patient population consisted of 80 patients with PAD, of which 40 patients (30 males [75%] and 10 females [25%]; mean age 66.18 years; median age 67.50 years) had ICLUs and represented the case group. Forty patients (100%) (27 males [67.50%] and 13 females [32.50%]; mean age 66.43 years; median age 66.50 years) did not have ICLUs and represented the control group. In patients of the case group, the higher was the risk calculated with the PredyCLU the more severe were the clinical manifestations recorded. In this study, the PredyCLU algorithm was retrospectively applied on a multicentre population of 80 patients with PAD. The PredyCLU algorithm provided a reliable risk score for the risk of ICLUs in patients with PAD. 相似文献
98.
99.
100.