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   6949篇
  免费   418篇
  国内免费   21篇
耳鼻咽喉   100篇
儿科学   169篇
妇产科学   99篇
基础医学   984篇
口腔科学   953篇
临床医学   470篇
内科学   1439篇
皮肤病学   156篇
神经病学   445篇
特种医学   186篇
外科学   701篇
综合类   27篇
预防医学   804篇
眼科学   131篇
药学   470篇
中国医学   66篇
肿瘤学   188篇
  2023年   68篇
  2022年   174篇
  2021年   249篇
  2020年   197篇
  2019年   237篇
  2018年   314篇
  2017年   190篇
  2016年   207篇
  2015年   258篇
  2014年   326篇
  2013年   383篇
  2012年   567篇
  2011年   638篇
  2010年   297篇
  2009年   276篇
  2008年   390篇
  2007年   425篇
  2006年   325篇
  2005年   264篇
  2004年   203篇
  2003年   166篇
  2002年   179篇
  2001年   125篇
  2000年   113篇
  1999年   105篇
  1998年   32篇
  1997年   18篇
  1996年   15篇
  1995年   15篇
  1994年   26篇
  1993年   14篇
  1992年   45篇
  1991年   52篇
  1990年   33篇
  1989年   46篇
  1988年   33篇
  1987年   39篇
  1986年   37篇
  1985年   25篇
  1984年   28篇
  1983年   22篇
  1982年   20篇
  1979年   15篇
  1978年   13篇
  1977年   16篇
  1976年   13篇
  1975年   15篇
  1970年   20篇
  1968年   20篇
  1967年   13篇
排序方式: 共有7388条查询结果,搜索用时 0 毫秒
71.
72.

Objective

This study investigated the influence of early to moderate primary open angle glaucoma on gait, functional mobility and fall risk.

Methods

Thirty-three participants in the early and moderate stages of primary open angle glaucoma and 34 asymptomatic controls participated in the study. Spatiotemporal gait data were obtained with the GAITRite system and included: velocity, cadence, step length, base of support, swing, stance and double support times. Functional measures included the Timed Up and Go test, the Five-Repetition Sit-To-Stand test and the Dynamic Gait Index. Fall risk was measured using the Physiological Profile Assessment.

Results

The variables contrast sensitivity, proprioception and the Timed Up and Go and Dynamic Gait Index tests were significantly different between groups. In addition, the glaucoma group presented significantly higher risk of falling compared to the control group. Individuals in the early and moderate stages of primary open glaucoma presented mobility and sensory deficits that increase the risk of falling.

Conclusions

The results of this study suggest that adding the Timed Up and Go and Dynamic Gait Index tests to routine physical therapy assessment of individuals with early glaucoma could be useful. Rehabilitation programs should focus on maintaining and/or improving mobility and balance, and prevention of falls in this population.  相似文献   
73.
74.
75.
Aplasia cutis congenita is a disease in which skin, bone, and dura mater can be absent. In majority of the cases it affects the scalp. We report a baby girl born at term with a large scalp and skull defect measuring 9 × 10 cm. Conservative treatment led to complete epithelization.  相似文献   
76.
We report a case of a secundipara with heterotopic cesarean scar pregnancy (HCSP) treated with potassium chloride injection into the ectopic embryo followed by sac aspiration. The remaining “mass” increased in size threefold and was surrounded by a rich vascular network. An arteriovenous malformation was suspected; however, appropriate treatment was precluded because of the viability of the ectopic gestation. Sonographic examination revealed a morbidly adherent placenta, and attempt to resect the mass laparoscopically was complicated by bleeding that required hysterectomy. This case illustrates a complication of the intervention performed to preserve the intrauterine gestation in case of HCSP. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound 46 :227–230, 2018  相似文献   
77.

Introduction

The aim of the study was to investigate the role of the proteolytic fraction from Vasconcellea cundinamarcensis, designated as P1G10, on the healing of chronic foot ulcers in neuropathic patients with diabetes 2.

Methods

Fifty patients were enrolled in a prospective, randomized, double-blind trial, to verify the efficacy and safety of a topical dressing formulated with 0.1% P1G10, intended for wound healing, versus a hydrogel (control) protocol. Upon completion of the intervention, the outcome evaluated the number of patients attaining full epithelization (100%), or at least 80% healing. Statistical analysis compared the data on each group for the significance of the differences.

Results

Collection of data was finished in week 16, and the results were analyzed by intention to treat. The results showed that, in the control group, 5 patients attained 100% ulcer healing, 3 patients?≥?80% healing and 11 experienced ulcer changes?≤?80%, and the remainder showed no changes or their wounds became worse. Meanwhile, in the P1G10 group, 11 patients experienced full healing, 4 had healing?≥?80% and 5 had ulcer changes?≤?lower than 80%, and the remainder showed no changes or their wounds became worse. The healing incidence for the first endpoint (100% healing) showed that the P1G10 group was 2.95-fold more efficacious than the control group (CI 95%) and 2.52-fold (CI, 95%) higher than its control for the second endpoint (80% healing).

Conclusions

These data support the hypothesis that topical application of the proteolytic fraction identified as P1G10 significantly enhances foot ulcer healing compared to hydrogel treatment.
  相似文献   
78.
79.
80.
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