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   60258篇
  免费   3674篇
  国内免费   1660篇
耳鼻咽喉   436篇
儿科学   967篇
妇产科学   676篇
基础医学   5520篇
口腔科学   1056篇
临床医学   5126篇
内科学   6119篇
皮肤病学   469篇
神经病学   7207篇
特种医学   1269篇
外国民族医学   6篇
外科学   5582篇
综合类   10463篇
现状与发展   1篇
一般理论   4篇
预防医学   5006篇
眼科学   1028篇
药学   4943篇
  112篇
中国医学   7930篇
肿瘤学   1672篇
  2023年   971篇
  2022年   1504篇
  2021年   2473篇
  2020年   2224篇
  2019年   2305篇
  2018年   2013篇
  2017年   1886篇
  2016年   1782篇
  2015年   1606篇
  2014年   3685篇
  2013年   3344篇
  2012年   3321篇
  2011年   4157篇
  2010年   3815篇
  2009年   2909篇
  2008年   2765篇
  2007年   2865篇
  2006年   2676篇
  2005年   2244篇
  2004年   1866篇
  2003年   1694篇
  2002年   1195篇
  2001年   1057篇
  2000年   850篇
  1999年   800篇
  1998年   666篇
  1997年   655篇
  1996年   442篇
  1995年   541篇
  1994年   503篇
  1993年   405篇
  1992年   389篇
  1991年   365篇
  1990年   314篇
  1989年   295篇
  1988年   292篇
  1987年   249篇
  1986年   267篇
  1985年   530篇
  1984年   492篇
  1983年   388篇
  1982年   430篇
  1981年   424篇
  1980年   400篇
  1979年   322篇
  1978年   277篇
  1977年   249篇
  1976年   185篇
  1975年   109篇
  1974年   106篇
排序方式: 共有10000条查询结果,搜索用时 359 毫秒
1.
熊磊教授以理脾为本,将治痰贯穿始终。根据小儿脾常不足、肾常虚、肝常有余的生理特点,癫痫发作期治疗主以涤痰开窍,辅以理气健脾,同时配合活血化瘀通窍与平肝息风潜阳。主要选方为柴芍温胆汤、天麻钩藤饮、桃红四物汤加减;缓解期则以补肾养肝为主,兼以健脾化痰,主要选方为杞菊地黄丸合定痫丸加减,取得较好临床疗效。  相似文献   
2.
3.
4.
5.
6.
PurposeTo review and to compare indirectly the outcomes of minimally invasive therapies for the treatment of lower urinary tract symptoms secondary to benign prostatic hyperplasia.Materials and MethodsA literature search via Medline and Cochrane Central databases was completed for randomized control studies published between January 2000 to April 2020 for the following therapies: Rezum, Urolift, Aquablation, and prostatic artery embolization (PAE). Data on the following variables were included: International prostate symptom score (IPSS), maximum urinary flow rate, quality of life, and postvoid residual (PVR). Standard mean differences between treatments were compared through a meta-analysis using transurethral resection of the prostate (TURP) to assess differences in treatment effect.ResultsThere was no significant difference in outcomes between therapies for IPSS at the 3, 6, and 12-month follow ups. Although outcomes for Rezum were only available out to 3 months, there were no consistently significant differences in outcomes when comparing Aquablation versus PAE versus Rezum. TURP PVR was significantly better than Urolift at 3, 6, and 12 months. No significant differences in minor or major adverse events were noted.ConclusionAlthough significant differences in outcomes were limited, Aquablation and PAE were the most durable at 12 months. PAE has been well studied on multiple randomized control trials with minimal adverse events while Aquablation has limited high quality data and has been associated with bleeding-related complications.  相似文献   
7.
Background/PurposeA small number of Hirschsprung disease (HD) patients develop inflammatory bowel disease (IBD)-like symptoms after pullthrough surgery. The etiology and pathophysiology of Hirschsprung-associated IBD (HD-IBD) remains unknown. This study aims to further characterize HD-IBD, to identify potential risk factors and to evaluate response to treatment in a large group of patients.MethodsRetrospective study of patients diagnosed with IBD after pullthrough surgery between 2000 and 2021 at 17 institutions. Data regarding clinical presentation and course of HD and IBD were reviewed. Effectiveness of medical therapy for IBD was recorded using a Likert scale.ResultsThere were 55 patients (78% male). 50% (n = 28) had long segment disease. Hirschsprung-associated enterocolitis (HAEC) was reported in 68% (n = 36). Ten patients (18%) had Trisomy 21. IBD was diagnosed after age 5 in 63% (n = 34). IBD presentation consisted of colonic or small bowel inflammation resembling IBD in 69% (n = 38), unexplained or persistent fistula in 18% (n = 10) and unexplained HAEC >5 years old or unresponsive to standard treatment in 13% (n = 7). Biological agents were the most effective (80%) medications. A third of patients required a surgical procedure for IBD.ConclusionMore than half of the patients were diagnosed with HD-IBD after 5 years old. Long segment disease, HAEC after pull through operation and trisomy 21 may represent risk factors for this condition. Investigation for possible IBD should be considered in children with unexplained fistulae, HAEC beyond the age of 5 or unresponsive to standard therapy, and symptoms suggestive of IBD. Biological agents were the most effective medical treatment.Level of EvidenceLevel 4  相似文献   
8.
9.
10.
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