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   16113篇
  免费   1377篇
  国内免费   365篇
耳鼻咽喉   13篇
儿科学   534篇
妇产科学   611篇
基础医学   883篇
口腔科学   76篇
临床医学   1815篇
内科学   1313篇
皮肤病学   79篇
神经病学   258篇
特种医学   295篇
外国民族医学   3篇
外科学   6142篇
综合类   2369篇
预防医学   763篇
眼科学   41篇
药学   1333篇
  16篇
中国医学   455篇
肿瘤学   856篇
  2024年   57篇
  2023年   204篇
  2022年   347篇
  2021年   567篇
  2020年   636篇
  2019年   561篇
  2018年   595篇
  2017年   630篇
  2016年   575篇
  2015年   578篇
  2014年   1063篇
  2013年   1150篇
  2012年   788篇
  2011年   1018篇
  2010年   951篇
  2009年   828篇
  2008年   831篇
  2007年   824篇
  2006年   836篇
  2005年   700篇
  2004年   668篇
  2003年   582篇
  2002年   457篇
  2001年   390篇
  2000年   259篇
  1999年   241篇
  1998年   169篇
  1997年   126篇
  1996年   122篇
  1995年   93篇
  1994年   82篇
  1993年   85篇
  1992年   72篇
  1991年   68篇
  1990年   75篇
  1989年   62篇
  1988年   62篇
  1987年   58篇
  1986年   52篇
  1985年   66篇
  1984年   52篇
  1983年   41篇
  1982年   46篇
  1981年   26篇
  1980年   25篇
  1979年   28篇
  1978年   29篇
  1977年   20篇
  1976年   16篇
  1975年   16篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
Abstract

Purpose: We examined underlying psychosocial processes of a behavioral treatment for urinary incontinence (UI) of prostate cancer survivors.

Design: Secondary analysis of data collected from a clinical trial.

Sample: Two hundred forty-four prostate cancer survivors who participated in a clinical trial of behavioral intervention to UI as intervention or control subjects.

Methods: The participants had a 3-month behavioral intervention or usual care and were followed up for an additional 3?months. They were assessed at baseline, 3, and 6?months. Latent growth curve models were performed to examine trajectories of each study variable and relationships among the variables.

Findings: Increasing self-efficacy and social support were significantly and independently associated with more reduction of urinary leakage frequency over time.

Implications for psychosocial oncology: Providing problem-solving skills and social support, including peer support, are essential for empowering patients to reduce UI.  相似文献   
12.
目的:运用中医传承辅助平台系统(V2.5)深入分析王树声教授治疗上尿路结石的用药经验,挖掘其核心经验 方组成和辨证用药规律。方法:收集王教授门诊治疗上尿路结石的治疗验方304 首,将方药信息录入系统,采用药物频次统计、 关联规则分析和熵聚类分析等方法分析处方用药规律。结果:304 首处方中涉及中药97 味,用药频次超过100 次的有14 味。所用药物药性多寒、温、平,药味多甘、苦,主归肝、肾、脾经;共得出25 组核心组合和9 首新处方。结论:王教授治疗 上尿路结石以益气固本、清热通淋为主,用药的关键在于“扶正固本”的把握和“祛邪通淋”的权衡,为临证用药和新方 开发提供参考。  相似文献   
13.
14.
15.
16.
AIM: To evaluate the usefulness of urodynamic study in young men with lower urinary tract symptoms (LUTS). METHODS: We reviewed the charts of 50 men with LUTS aged 50 years and below. Those with neurological diseases, urethral trauma or strictures were excluded. All underwent multichannel urodynamic studies (UDS). The pre- and post-UDS diagnoses and treatment modalities were compared. RESULTS: Mean age was 38.1 years (17-49). The main pre-UDS diagnoses included prostatitis in seven (14%), overactive bladder in seventeen (34%) and benign prostatic hyperplasia in nine (18%). Pre-UDS management ranged from anticholingeric agents for thirteen (26%), alpha-adrenergic antagonists for nine (18%), antibiotics for six (12%). Abnormal UDS were noted in 36 (72%), including detrusor overactivity in 9 (18%), detrusor underactivity/acontractility in 5 (10%) and bladder outlet obstruction in 21 (42%). Fourteen (28%) had primary bladder neck dysfunction and five (10%) had benign prostatic hyperplasia. Post-UDS management included anticholingeric agents for ten (26%), alpha-adrenergic antagonists for seventeen (34%), catheterization for four (10%), behavioral therapy for three (6%), surgery for three (6%). None were prescribed antibiotics. Following UDS, the diagnosis had to be updated in 40 (80%) and concomitant change in management was required in 34 (68%). CONCLUSION: Young men presenting with LUTS have different underlying etiologies. Clinical diagnosis and treatment are often empiric and inaccurate. Urodynamic study is useful in the evaluation of this group of patients as it aids in arriving at an accurate diagnosis and guides treatment therapy.  相似文献   
17.
18.
直肠癌术中保留盆腔自主神经对男性排尿及性功能的影响   总被引:5,自引:0,他引:5  
目的探讨直肠癌根治术中保留盆腔自主神经(PANP)对男性排尿及性功能的影响。方法以问卷彤式调查48例直肠癌患者PANP手术和24例非PANP手术前、后的排尿功能和性功能,比较分析行直肠癌根治术的PANP组和非PANP组患者术后排尿和性功能指标及直肠癌的局部复发率。结果PANP组患者术后排尿及性功能部分指标优于对照组(P〈0.05),两组术后局部癌肿复发率比较尤显著性差异(P〉0.05)。结论直肠癌患者根治术中实施PANP,既不增加局部癌肿复发率,还可以改善患者的排尿和性功能,提高患者的生存质量。  相似文献   
19.
20.
The aim of this study was to assess the impact of delivery on the pelvic floor and whether cesarean section (C/S) can prevent pelvic floor injury. Five hundred thirty nine women were divided into three groups according to the delivery method adopted: elective C/S, emergent C/S, and vaginal delivery. A urinary incontinence questionnaire survey was conducted around 1 year postpartum. Emergent C/S may be a major risk factor for postpartum urinary incontinence and interfere with the benefit of elective C/S for preventing pelvic floor injury. Hence, not all C/S deliveries can reduce the likelihood of postpartum urinary incontinence. The key lies in whether the C/S is performed before labor.  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