全文获取类型
收费全文 | 8240篇 |
免费 | 489篇 |
国内免费 | 41篇 |
专业分类
耳鼻咽喉 | 91篇 |
儿科学 | 305篇 |
妇产科学 | 270篇 |
基础医学 | 776篇 |
口腔科学 | 285篇 |
临床医学 | 788篇 |
内科学 | 1901篇 |
皮肤病学 | 244篇 |
神经病学 | 628篇 |
特种医学 | 305篇 |
外科学 | 1457篇 |
综合类 | 104篇 |
一般理论 | 7篇 |
预防医学 | 462篇 |
眼科学 | 199篇 |
药学 | 464篇 |
中国医学 | 36篇 |
肿瘤学 | 448篇 |
出版年
2024年 | 8篇 |
2023年 | 98篇 |
2022年 | 160篇 |
2021年 | 395篇 |
2020年 | 257篇 |
2019年 | 353篇 |
2018年 | 340篇 |
2017年 | 252篇 |
2016年 | 267篇 |
2015年 | 271篇 |
2014年 | 387篇 |
2013年 | 409篇 |
2012年 | 719篇 |
2011年 | 700篇 |
2010年 | 407篇 |
2009年 | 349篇 |
2008年 | 504篇 |
2007年 | 518篇 |
2006年 | 420篇 |
2005年 | 382篇 |
2004年 | 326篇 |
2003年 | 300篇 |
2002年 | 253篇 |
2001年 | 81篇 |
2000年 | 67篇 |
1999年 | 65篇 |
1998年 | 37篇 |
1997年 | 41篇 |
1996年 | 35篇 |
1995年 | 24篇 |
1994年 | 18篇 |
1993年 | 27篇 |
1992年 | 21篇 |
1991年 | 28篇 |
1990年 | 28篇 |
1989年 | 14篇 |
1988年 | 23篇 |
1987年 | 19篇 |
1986年 | 16篇 |
1985年 | 26篇 |
1984年 | 24篇 |
1983年 | 15篇 |
1982年 | 10篇 |
1981年 | 11篇 |
1980年 | 7篇 |
1979年 | 9篇 |
1978年 | 8篇 |
1977年 | 7篇 |
1974年 | 7篇 |
1973年 | 5篇 |
排序方式: 共有8770条查询结果,搜索用时 109 毫秒
991.
992.
Inflammatory myofibroblastic tumor (IMT) is a rare neoplasm with unknown malignant potential that has been described in most organ systems. We present the case of a 3-year-old boy who was referred with lower urinary tract symptoms and macroscopic hematuria. An IMT was suspected after clinical, radiological, and surgical work-up, and the diagnosis was confirmed after a partial cystectomy was performed. A bladder-preserving approach is the treatment of choice, but close clinical follow-up is recommended because of the unknown biological behavior of these tumors. 相似文献
993.
Pooli AH Aran S Farhoud AR Saidian L Kajbafzadeh AM 《International urology and nephrology》2012,44(2):327-334
Purpose
Vesicoureteral reflux (VUR) and Gastroesophageal reflux (GER) are both common disorders in children and could be associated with significant morbidities. Although they appear to be separate entities, their natural history and underlying pathophysiology are the same and they both tend to resolve over time. We aimed to appraise their concurrent occurrence and prevalence of GER in VUR patients to understand whether they can be considered different manifestations of a syndrome mainly caused by developmental delay resulting in dysfunction of the sphincters. 相似文献994.
Sutcliffe RP Battula N Haque A Ali A Srinivasan P Atkinson SW Rela M Heaton ND Prachalias AA 《World journal of surgery》2012,36(4):879-883
Background
Early detection of pancreatic fistula (PF) may improve the outcome after pancreaticoduodenectomy, and exclusion of PF may allow earlier drain removal and accelerate recovery. The aim of the present study was to evaluate the relationship between drain fluid amylase on the first postoperative day (DFA1) and PF. 相似文献995.
Different etiologies may lead to total auricular and external auditory canal wall ablation. These include burns, tumors, trauma, and malformations. Reconstruction of the canal wall and maintaining its patency pose as a great challenge in plastic surgery. Inability to do so may lead to a serious hearing impairment. To date, different procedures aim at restoring this patency and include skin grafts and local flaps. Unfortunately, skin grafts are associated with a high contracture rate. Local flaps are associated with donor site morbidity. We present a case of an 85-year-old man who underwent auricular ablation due to squamous cell carcinoma which included the external auditory canal. Sparing the tragal and lobular areas within the surgical margins using frozen section-controlled margins, we were able to reconstruct the canal wall. The tragal lobular wrap flap provides a valuable and consistent long-lasting method for auricular canal reconstruction and postauricular amputation wound coverage. Level of evidence: Level V, therapeutic study. 相似文献
996.
Mesenteric fibromatosis poses a diagnostic and therapeutic challenge.This paper presents a 35-year-old female complaining of vague abdominal pain of 2 mo duration.Her computed tomography scan and magnetic resonance imaging revealed a pelvi-abdominal heterogenous mass with significant displacement of the small bowel and urinary bladder.She underwent surgical excision of the mass with resection and anastomosis of the involved loop of the small intestine.Histological examination confirmed mesenteric fibromatosis without infiltration of the bowel.The patient remained well during the 6 mo follow-up. 相似文献
997.
Benan M. Dala-Ali Amir Nakhdjevani Mary A. Lloyd Frederik B. Schreuder 《Clinics in Orthopedic Surgery》2012,4(4):263-268
Background
Trigger finger is one of the most common reasons for referral to a hand specialist clinic. The purpose of this study is to investigate the efficacy of steroid injections for treating trigger digits.Methods
Ninety digits were investigated with at least a year follow up. The study mainly focused on the efficacy of the injections, as well as co-morbidities, presence of a nodule, actual digit injected and the severity at presentation using Green''s classification.Results
The study found that 66% of trigger digits were effectively treated using steroid injections. There was a difference between the efficacy of the injection in the different digits, with a statistical significance between the thumb and the fingers. The results also showed that there was no statistical relationship between the severity of the condition, the presence of a nodule or co-morbidities and the efficacy of the steroid injections.Conclusions
The study found that steroid injections are an effective first-line intervention for the treatment of trigger digit. It also found an increased efficacy for treating the thumb compared to other digits. Both the severity of the condition at presentation and the presence of a nodule had no significant impact on the efficacy of the injections. 相似文献998.
999.
1000.