首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   11358篇
  免费   1977篇
  国内免费   66篇
耳鼻咽喉   268篇
儿科学   3161篇
妇产科学   31篇
基础医学   532篇
口腔科学   2043篇
临床医学   1313篇
内科学   1227篇
皮肤病学   212篇
神经病学   395篇
特种医学   202篇
外国民族医学   1篇
外科学   1561篇
综合类   427篇
一般理论   3篇
预防医学   449篇
眼科学   260篇
药学   559篇
  23篇
中国医学   174篇
肿瘤学   560篇
  2024年   70篇
  2023年   592篇
  2022年   363篇
  2021年   620篇
  2020年   904篇
  2019年   912篇
  2018年   808篇
  2017年   768篇
  2016年   671篇
  2015年   589篇
  2014年   816篇
  2013年   996篇
  2012年   609篇
  2011年   515篇
  2010年   482篇
  2009年   460篇
  2008年   421篇
  2007年   428篇
  2006年   320篇
  2005年   299篇
  2004年   178篇
  2003年   174篇
  2002年   133篇
  2001年   133篇
  2000年   101篇
  1999年   78篇
  1998年   85篇
  1997年   84篇
  1996年   69篇
  1995年   63篇
  1994年   50篇
  1993年   64篇
  1992年   59篇
  1991年   59篇
  1990年   45篇
  1989年   50篇
  1988年   53篇
  1987年   34篇
  1986年   23篇
  1985年   47篇
  1984年   43篇
  1983年   24篇
  1982年   22篇
  1981年   10篇
  1980年   25篇
  1979年   11篇
  1978年   11篇
  1977年   8篇
  1974年   7篇
  1973年   6篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
201.
Acute suppurative bacterial dacryoadenitis (ASBD) with abscess formation is rarely seen in clinical practice. A retrospective review of medical records in the past 8 years identified two unilateral cases in children, one developed presumably after methicillin-sensitive Staphylococcus aureus (MSSA) conjunctivitis and the other due to community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infection. Computerized tomography scans showed globe indentation by the enlarged lacrimal glands with rim-enhancing lesions. After failing to respond to intravenous antibiotics, both abscesses resolved promptly with surgical drainage without any long-term sequelae.  相似文献   
202.
203.
Introduction: Epigenetic mechanisms of gene regulatory control play fundamental roles in developmental morphogenesis, and, as more recently appreciated, are heavily implicated in the onset and progression of neoplastic disease, including cancer. Many epigenetic mechanisms are therapeutically targetable, providing additional incentive for understanding of their contribution to cancer and other types of neoplasia.

Areas covered: The Jumonji-domain histone demethylase (JHDM) family exemplifies many of the above traits. This review summarizes the current state of knowledge of the functions and pharmacologic targeting of JHDMs in cancer and other neoplastic processes, with an emphasis on diseases affecting the pediatric population.

Expert opinion: To date, the JHDM family has largely been studied in the context of normal development and adult cancers. In contrast, comparatively few studies have addressed JHDM biology in cancer and other neoplastic diseases of childhood, especially solid (non-hematopoietic) neoplasms. Encouragingly, the few available examples support important roles for JHDMs in pediatric neoplasia, as well as potential roles for JHDM pharmacologic inhibition in disease management. Further investigations of JHDMs in cancer and other types of neoplasia of childhood can be expected to both enlighten disease biology and inform new approaches to improve disease outcomes.  相似文献   

204.
205.
206.
207.
208.

Background

Information on young patients with Brugada syndrome (BrS) and arrhythmic events (AEs) is limited.

Objectives

The purpose of this study was to describe their characteristics and management as well as risk factors for AE recurrence.

Methods

A total of 57 patients (age ≤20 years), all with BrS and AEs, were divided into pediatric (age ≤12 years; n = 26) and adolescents (age 13 to 20 years; n = 31).

Results

Patients’ median age at time of first AE was 14 years, with a majority of males (74%), Caucasians (70%), and probands (79%) who presented as aborted cardiac arrest (84%). A significant proportion of patients (28%) exhibited fever-related AE. Family history of sudden cardiac death (SCD), prior syncope, spontaneous type 1 Brugada electrocardiogram (ECG), inducible ventricular fibrillation at electrophysiological study, and SCN5A mutations were present in 26%, 49%, 65%, 28%, and 58% of patients, respectively. The pediatric group differed from the adolescents, with a greater proportion of females, Caucasians, fever-related AEs, and spontaneous type-1 ECG. During follow-up, 68% of pediatric and 64% of adolescents had recurrent AE, with median time of 9.9 and 27.0 months, respectively. Approximately one-third of recurrent AEs occurred on quinidine therapy, and among the pediatric group, 60% of recurrent AEs were fever-related. Risk factors for recurrent AE included sinus node dysfunction, atrial arrhythmias, intraventricular conduction delay, or large S-wave on ECG lead I in the pediatric group and the presence of SCN5A mutation among adolescents.

Conclusions

Young BrS patients with AE represent a very arrhythmogenic group. Current management after first arrhythmia episode is associated with high recurrence rate. Alternative therapies, besides defibrillator implantation, should be considered.  相似文献   
209.
ABSTRACT

Collaborative goal setting between clinicians and clients/families is considered a fundamental component of the pediatric rehabilitation process. However, truly client-centered goal setting is not without its challenges. The purpose of this paper is to highlight theoretical concepts relevant to rehabilitation goal setting, review clinical studies directly evaluating relationships between goal setting and pediatric rehabilitation outcomes, and provide recommendations to facilitate collaborative goal processes. Four theoretical frameworks were identified that may lie behind and help explain the effectiveness of collaborative goal setting. The four relevant outcome studies found in the review revealed that individualized goal setting is an important component of the intervention, engages families more actively in therapy, and is associated to some extent with positive outcomes. The evidence suggests that the impact of fully collaborative goal setting is sufficiently positive to support investment of organizational and individual time, energy, and resources to make it an integral part of the rehabilitation process.  相似文献   
210.
A wide gathering of scientists, clinicians, pharmacists and nurses specialized in pediatric oncology practice met to celebrate the second anniversary of Children’s Cancer Hospital, Egypt (CCHE). The celebration was in the form of high-brow teaching lectures and reports presented by international experts in the fields of pediatric CNS tumors, solid tumors (neuroblastoma, nephroblastoma, soft tissue and bone tumors, lymphoma, leukemia and pediatric oncology nursing. The conference extends its activities to hospital management, clinical pharmacy and telemedicine. Furthermore, CCHE experts presented the efforts performed to establish a state-of-the-art pediatric oncology hospital equipped with all needed facilities to raise the standard of care to the highest levels.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号