全文获取类型
收费全文 | 19327篇 |
免费 | 1668篇 |
国内免费 | 562篇 |
专业分类
耳鼻咽喉 | 818篇 |
儿科学 | 160篇 |
妇产科学 | 80篇 |
基础医学 | 591篇 |
口腔科学 | 65篇 |
临床医学 | 2600篇 |
内科学 | 6454篇 |
皮肤病学 | 64篇 |
神经病学 | 320篇 |
特种医学 | 1026篇 |
外科学 | 4125篇 |
综合类 | 2762篇 |
预防医学 | 524篇 |
眼科学 | 120篇 |
药学 | 1133篇 |
18篇 | |
中国医学 | 227篇 |
肿瘤学 | 470篇 |
出版年
2024年 | 46篇 |
2023年 | 442篇 |
2022年 | 794篇 |
2021年 | 960篇 |
2020年 | 1036篇 |
2019年 | 802篇 |
2018年 | 859篇 |
2017年 | 771篇 |
2016年 | 938篇 |
2015年 | 848篇 |
2014年 | 1618篇 |
2013年 | 1494篇 |
2012年 | 1225篇 |
2011年 | 1314篇 |
2010年 | 981篇 |
2009年 | 957篇 |
2008年 | 971篇 |
2007年 | 906篇 |
2006年 | 739篇 |
2005年 | 632篇 |
2004年 | 547篇 |
2003年 | 408篇 |
2002年 | 329篇 |
2001年 | 253篇 |
2000年 | 232篇 |
1999年 | 186篇 |
1998年 | 185篇 |
1997年 | 163篇 |
1996年 | 123篇 |
1995年 | 123篇 |
1994年 | 116篇 |
1993年 | 99篇 |
1992年 | 74篇 |
1991年 | 77篇 |
1990年 | 66篇 |
1989年 | 42篇 |
1988年 | 36篇 |
1987年 | 31篇 |
1986年 | 22篇 |
1985年 | 21篇 |
1984年 | 14篇 |
1983年 | 15篇 |
1982年 | 23篇 |
1981年 | 8篇 |
1980年 | 13篇 |
1979年 | 5篇 |
1978年 | 3篇 |
1977年 | 7篇 |
1975年 | 1篇 |
1972年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
《Digestive and liver disease》2022,54(11):1486-1493
BackgroundCold snare polypectomy (CSP) is a promising technique for the removal of sessile serrated polyps (SSPs) ≥ 10 mm. However, the efficacy and safety of this technique remain undetermined.AimsWe aimed to comprehensively evaluate the efficacy and safety of CSP for SSPs ≥ 10 mm.MethodsPubMed, EMBASE, Web of Science and Cochrane Library were searched up to January 2021.ResultsA total of 10 studies consisting of 1727 SSPs (range, 10–40 mm) from 1021 patients were included. The overall rates of technical success, adverse events (AEs) and residual SSPs were 100%, 0.7% and 2.9%, respectively. Subgroup analysis showed that the rates of technical success and AEs were comparable between CSP and cold endoscopic mucosal resection (EMR) (99.9% vs. 100% and 1.3% vs. 0.5%, respectively), between the proximal and distal colon (100% vs. 99.9% and 0.3% vs. 0, respectively), and between polyps of 10–19 mm and ≥20 mm (99.8% vs. 100% and 0.9% vs. 0, respectively). However, subgroup analysis showed that the rate of residual SSPs was slightly lower in CSP compared with cold EMR (1.3% vs. 3.9%), as well as in polyps of 10–19 mm compared with those ≥20 mm (3.1% vs. 4.7%).ConclusionCSP was an effective and safe technique for removing SSPs ≥ 10 mm. 相似文献
3.
4.
5.
《Archives of Cardiovascular Diseases》2022,115(10):505-513
Central illustration: cumulative major adverse cardiac events (MACE) and bioresorbable vascular scaffold (BVS) thrombosis rates after 1, 2, 3, 4 and 5 years. 相似文献
6.
目的:观察鼻腔内窥镜下行鼻腔泪囊造孔术治疗慢性泪囊炎的临床疗效。方法回顾性分析2013年6月至2015年6月在我院收治的慢性泪囊炎患者39例(40只眼),采用鼻腔内窥镜下鼻腔泪囊造孔术进行手术治疗,术后随访3~6个月,观察术眼流脓、溢泪等情况。结果鼻内窥镜下鼻腔泪囊造孔术治疗39例(40只眼)患者,治愈35例(36只眼),好转3例(3只眼),无效1例(1只眼)。治愈率90%,好转率7.5%,无效率2.5%。结论经鼻内窥镜下行鼻腔泪囊造孔术治疗慢性泪囊炎,疗效确切。具有手术简单、创伤小、出血少、无需面部切口、面部不留疤痕等优点。 相似文献
7.
Gian Eugenio Tontini Guido Manfredi Stefania Orlando Helmut Neumann Maurizio Vecchi Elisabetta Buscarini Luca Elli 《Digestive endoscopy》2019,31(6):627-643
Over the last decade, impressive technological advances have occurred in ultrasonography and small‐bowel endoscopy. Nowadays, endoscopic ultrasonography is an essential diagnostic tool and a therapeutic weapon for pancreatobiliary disorders. Capsule endoscopy and device‐assisted enteroscopy have quickly become the reference standard for the diagnosis of small‐bowel luminal diseases, thereby leading to radical changes in diagnostic and therapeutic pathways. We herein provide an up‐to‐date overview of the latest advances in endoscopic ultrasonography and small‐bowel endoscopy, focusing on the emerging paradigms and technological innovations that might improve clinical practice in the near future. 相似文献
8.
《Foot and Ankle Surgery》2022,28(4):460-463
The third-generation percutaneous chevron and Akin osteotomy (PECA) technique for surgical management of hallux valgus has shown improvement in clinical and radiographic outcomes. During this procedure, lateral translation and fixation of the first metatarsal head results in the formation of a bony prominence on the medial side of the distal aspect of the first metatarsal which can cause pain and discomfort to the patient. We describe two techniques to address this bony prominence; either i) excision osteotomy and removal of the fragment or ii) a dorsal closing wedge osteotomy retaining the bony fragment.Level of EvidenceLevel V, expert opinion 相似文献
9.
10.
《Annals of physical and rehabilitation medicine》2022,65(1):101486
BackgroundDifferent studies have reported the efficacy of percutaneous tibial nerve stimulation (PTNS) and transcutaneous tibial nerve stimulation (TTNS) in treating idiopathic overactive bladder (OAB). However, no study has compared the effectiveness of PTNS and TTNS added to bladder training (BT) in idiopathic OAB.ObjectiveTo compare the efficacy of PTNS and TTNS added to BT in women with idiopathic OAB.MethodsWe randomised 60 women with idiopathic OAB into 3 groups. Group 1 (n = 19) received BT, Group 2 (n = 19) received PTNS in addition to BT, and Group 3 (n = 20) received TTNS in addition to BT. PTNS and TTNS were performed 2 days a week, for 30 min a day, for a total of 12 sessions for 6 weeks. Patients were evaluated by incontinence severity (pad test), a 3-day voiding diary (frequency of voiding, incontinence episodes, nocturia and number of pads used), symptom severity, quality of life, treatment success (positive response rate), treatment satisfaction (Likert scale), discomfort level and preparation time for stimulation (sec).ResultsAt the end of treatment; severity of incontinence, frequency of voiding, incontinence episodes, nocturia, number of pads used, symptom severity and quality of life were significantly improved in Groups 2 and 3 versus Group 1 (P < 0.0167). Treatment success and treatment satisfaction were higher in Groups 2 and 3 than Group 1 (P < 0.001 and P < 0.0167, respectively). Level of discomfort was lower, treatment satisfaction was higher and preparation time for stimulation was shorter in Group 3 than Group 2 (P < 0.05).ConclusionBoth the PTNS plus BT and TTNS plus BT were more effective than BT alone in women with idiopathic OAB. These 2 tibial nerve stimulation methods had similar clinical efficacy but with slight differences: TTNS had shorter preparation time, less discomfort level and higher patient satisfaction than PTNS. 相似文献