全文获取类型
收费全文 | 72416篇 |
免费 | 4601篇 |
国内免费 | 2065篇 |
专业分类
耳鼻咽喉 | 428篇 |
儿科学 | 1410篇 |
妇产科学 | 1021篇 |
基础医学 | 6600篇 |
口腔科学 | 1338篇 |
临床医学 | 7031篇 |
内科学 | 8001篇 |
皮肤病学 | 655篇 |
神经病学 | 3724篇 |
特种医学 | 1573篇 |
外国民族医学 | 9篇 |
外科学 | 6661篇 |
综合类 | 13405篇 |
现状与发展 | 2篇 |
一般理论 | 4篇 |
预防医学 | 6512篇 |
眼科学 | 1113篇 |
药学 | 7775篇 |
128篇 | |
中国医学 | 9215篇 |
肿瘤学 | 2477篇 |
出版年
2024年 | 230篇 |
2023年 | 1155篇 |
2022年 | 2149篇 |
2021年 | 2826篇 |
2020年 | 2613篇 |
2019年 | 2691篇 |
2018年 | 2380篇 |
2017年 | 2345篇 |
2016年 | 2265篇 |
2015年 | 1982篇 |
2014年 | 4462篇 |
2013年 | 4258篇 |
2012年 | 3968篇 |
2011年 | 4946篇 |
2010年 | 4352篇 |
2009年 | 3263篇 |
2008年 | 3064篇 |
2007年 | 3318篇 |
2006年 | 3101篇 |
2005年 | 2603篇 |
2004年 | 2162篇 |
2003年 | 2002篇 |
2002年 | 1479篇 |
2001年 | 1264篇 |
2000年 | 1050篇 |
1999年 | 911篇 |
1998年 | 767篇 |
1997年 | 746篇 |
1996年 | 615篇 |
1995年 | 681篇 |
1994年 | 654篇 |
1993年 | 546篇 |
1992年 | 528篇 |
1991年 | 467篇 |
1990年 | 416篇 |
1989年 | 403篇 |
1988年 | 385篇 |
1987年 | 357篇 |
1986年 | 301篇 |
1985年 | 765篇 |
1984年 | 671篇 |
1983年 | 549篇 |
1982年 | 548篇 |
1981年 | 526篇 |
1980年 | 472篇 |
1979年 | 394篇 |
1978年 | 351篇 |
1977年 | 307篇 |
1976年 | 229篇 |
1975年 | 146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.
《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
7.
8.
Tonya J.H. White 《Journal of the American Academy of Child and Adolescent Psychiatry》2019,58(11):1042-1050
9.
穴位埋线是长效针灸,是在传统针具和针法基础上建立和发展起来的,是针灸技术的发展和延伸,穴位埋线的核心技术是穿刺技术,穴位埋线的三大要素中,针具、埋藏物、穿刺技巧之间是互相影响、互相促进的。针具的改进成功实现了穴位埋线疗法的第一次飞跃,埋藏物的改进成功实现了穴位埋线疗法的第二次飞跃,穿刺技术的改进和创新是穴位埋线疗法的第三次飞跃。 相似文献
10.
目的对比动力髋螺钉(dynamic hip screw,DHS)治疗和股骨近端抗旋髓内钉(proximal femoral nail anti-rotation,PFNA)固定治疗老年股骨粗隆间骨折疗效。方法纳入本院收治的45例采用PFNA固定治疗的老年股骨粗隆间骨折患者作为研究组,研究时间为2017年11月-2018年11月;回顾性分析2016年11月-2017年11月在我院采用DHS治疗的45例老年股骨粗隆间骨折患者的临床资料,作为对照组。记录两组的相关手术指标,观察手术并发症情况。结果研究组的手术时间和骨折愈合时间均短于对照组,术中出血量明显少于对照组,术后疼痛VAS评分均明显低于对照组(P<0.05)。对照组的并发症发生率高于研究组(P<0.05)。结论PFNA固定治疗比DHS治疗老年股骨粗隆间骨折更加安全有效,值得临床借鉴和应用。 相似文献