全文获取类型
收费全文 | 56604篇 |
免费 | 3589篇 |
国内免费 | 1518篇 |
专业分类
耳鼻咽喉 | 389篇 |
儿科学 | 959篇 |
妇产科学 | 670篇 |
基础医学 | 4477篇 |
口腔科学 | 1045篇 |
临床医学 | 5169篇 |
内科学 | 5701篇 |
皮肤病学 | 477篇 |
神经病学 | 3102篇 |
特种医学 | 1268篇 |
外国民族医学 | 6篇 |
外科学 | 5551篇 |
综合类 | 11154篇 |
现状与发展 | 1篇 |
一般理论 | 4篇 |
预防医学 | 5810篇 |
眼科学 | 936篇 |
药学 | 4676篇 |
124篇 | |
中国医学 | 8537篇 |
肿瘤学 | 1655篇 |
出版年
2024年 | 196篇 |
2023年 | 1017篇 |
2022年 | 1831篇 |
2021年 | 2429篇 |
2020年 | 2280篇 |
2019年 | 2333篇 |
2018年 | 1976篇 |
2017年 | 1826篇 |
2016年 | 1725篇 |
2015年 | 1470篇 |
2014年 | 3679篇 |
2013年 | 3182篇 |
2012年 | 3237篇 |
2011年 | 4016篇 |
2010年 | 3667篇 |
2009年 | 2659篇 |
2008年 | 2464篇 |
2007年 | 2651篇 |
2006年 | 2444篇 |
2005年 | 2029篇 |
2004年 | 1630篇 |
2003年 | 1517篇 |
2002年 | 1033篇 |
2001年 | 929篇 |
2000年 | 764篇 |
1999年 | 698篇 |
1998年 | 543篇 |
1997年 | 513篇 |
1996年 | 415篇 |
1995年 | 457篇 |
1994年 | 425篇 |
1993年 | 325篇 |
1992年 | 321篇 |
1991年 | 289篇 |
1990年 | 246篇 |
1989年 | 242篇 |
1988年 | 247篇 |
1987年 | 204篇 |
1986年 | 197篇 |
1985年 | 417篇 |
1984年 | 409篇 |
1983年 | 325篇 |
1982年 | 357篇 |
1981年 | 353篇 |
1980年 | 342篇 |
1979年 | 304篇 |
1978年 | 270篇 |
1977年 | 244篇 |
1976年 | 182篇 |
1975年 | 108篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
《Journal of vascular and interventional radiology : JVIR》2022,33(4):359-367.e8
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
6.
深化家庭医生签约服务是深化医药卫生体制改革、强化基层医疗卫生服务、实现"健康中国"战略目标的重要选择,也是当前更好维护人民群众健康的重要途径。为有效推进签约服务工作,国家陆续推出各项政策,全国各地也在积极进行实践探索,成效明显。但是,签约服务仍面临诸多问题,其中"执行难"是签约服务深度推进的一大困境。通过史密斯政策执行过程模型,结合签约服务政策执行过程,发现签约服务仍存在法治性不足、政策执行人员水平不高、激励不足、政策环境影响等诸多制约因素。因此,需要从法律和制度方面进行顶层设计、提升执行人员素质和职业认同、建立医患互信、优化政策执行环境等角度进行政策创新,探索家庭医生签约服务可持续发展的路径。 相似文献
7.
《Journal of pediatric surgery》2023,58(5):856-861
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.
Tonya J.H. White 《Journal of the American Academy of Child and Adolescent Psychiatry》2019,58(11):1042-1050