全文获取类型
收费全文 | 43篇 |
免费 | 2篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 2篇 |
妇产科学 | 2篇 |
基础医学 | 8篇 |
口腔科学 | 2篇 |
临床医学 | 5篇 |
内科学 | 15篇 |
皮肤病学 | 2篇 |
外科学 | 5篇 |
预防医学 | 2篇 |
药学 | 2篇 |
出版年
2021年 | 2篇 |
2018年 | 3篇 |
2017年 | 6篇 |
2016年 | 2篇 |
2014年 | 3篇 |
2013年 | 1篇 |
2011年 | 2篇 |
2010年 | 2篇 |
2009年 | 3篇 |
2008年 | 3篇 |
2006年 | 2篇 |
2005年 | 2篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1995年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1986年 | 1篇 |
1978年 | 2篇 |
1976年 | 1篇 |
1955年 | 1篇 |
1954年 | 1篇 |
排序方式: 共有46条查询结果,搜索用时 21 毫秒
11.
12.
NUR Bilge Gülsüm OK Evren Mustafa ALTUNSOY Osman Sami A?LARCI Mehmet ?OLAK Enes GüNG?R 《Journal of applied oral science : revista FOB》2014,22(6):502-508
Objective
This study aimed to assess the quality of root fillings, coronal restorations, complications of all root-filled teeth and their association with apical periodontitis (AP) detected by cone-beam computed tomography (CBCT) images from an adult Turkish subpopulation.Material and Methods
The sample for this study consisted of 242 patients (aging from 15 to 72 years) with 522 endodontically treated teeth that were assessed for technical quality of the root canal filling and periapical status of the teeth. Additionally, the apical status of each root-filled tooth was assessed according to the gender, dental arch, tooth type and age classification, undetected canals, instrument fracture, root fracture, apical resorption, apical lesion, furcation lesion and type and quality of the coronal structure. Statistical analysis was performed using percentages and chi-square test.Results
The success rate of the root canal treatment was of 54.4%. The success rates of adequate and inadequate root canal treatment were not significantly different (p>0.05). Apical periodontitis was found in 228 (45.6%) teeth treated for root canals. Higher prevalence of AP was found in patients aging from 20 to 29 years [64 (27%) teeth] and in anterior (canines and incisors) teeth [97 (41%) teeth].Conclusions
The technical quality of root canal filling performed by dental practitioners in a Turkish subpopulation was consistent with a high prevalence of AP. The probable reasons for this failure are multifactorial, and there may be a need for improved undergraduate education and postgraduate courses to improve the clinical skills of dental practitioners in endodontics. 相似文献13.
The heterogeneity of individuals with blood pressure (BP) < 140/90 mmHg in terms of cardiovascular (CV) risk was reported as early as 1939 by Robinson and Brucer.1 BP in the range of 120–139/80–89 mmHg (labelled then as prehypertension) was observed to be associated with high risk of progression to hypertension (HT) and cardiovascular disease (CVD) later in life when compared with BP < 120/80 mm Hg.1The term prehypertension was adopted in May 2003 by the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation and Treatment of High blood Pressure (JNC-7) to describe BP range of 120–139/80–89 mmHg.2 The resuscitation of this terminology/concept in JNC-7 was a sequel to the documentation of a higher morbidity in individuals with prehypertension in landmark publications.3-5 Prehypertension (PHT) was defined in JNC-7 not only to emphasise the excess risk associated with BP in this range, but also to focus increased clinical and public health attention on prevention.2,6,7Prevalence rates of PHT among adults in the United States, Ghana and northern Nigeria have been reported to be 31, 40 and 58.7%, respectively.7-9 In most studies, including the ones above, PHT was more prevalent than hypertension.7-9 Though PHT is associated with increased risk of major CV events independently of other CV risk factors,10 most individuals (90%) with PHT have at least one cardiovascular risk factor such as dyslipidaemia, abdominal obesity, hyperinsulinaemia, impaired fasting glucose levels, insulin resistance, a prothrombotic state, tobacco use, endothelial dysfunction, and impaired vascular distensibility.6,7,9,10QT interval dispersion (QTd) (the difference between the longest and the shortest QT intervals on a surface ECG), when excessive, is associated with increased risk of cardiovascular morbidity and mortality in population studies, and many clinical conditions, including hypertension.11,12 This has been related to ventricular electrical instability, providing the necessary substrate for lethal ventricular arrhythmias.12,13 Greater QTd and left ventricular mass have been demonstrated in hypertensive individuals compared with normal individuals.11,13,14Considering the well-established, linear relationship between BP and the risk of cardiovascular events, the CV risk associated with PHT is intermediate between normotension and hypertension.2,03 Hence, electrocardiographic and echocardiographic indices of target-organ damage in PHT may also be intermediate between normotension and hypertension. The aims of this study were: (1) to compare the QTd and indices of left ventricular hypertrophy in adult black normal and prehypertensive subjects, and (2) to evaluate the relationship of QTd with electrocardiographic and echocardiographic indices in these subjects. 相似文献
14.
15.
Squamous Cell Carcinoma of the Stomach 总被引:2,自引:0,他引:2
OK HEE WON M.D. JACK FARMAN M.B. Ch.B. M.Med. †MADURAI N. KRISHNAN M.D. ‡SWAMINATH K. IYER M.D. ‡ J. C. VULETIN M.D. 《The American journal of gastroenterology》1978,69(5):594-598
Squamous cell carcinoma of the stomach is a rare, unusual lesion which tends to occur at a somewhat earlier age than adenocarcinoma. Grossly and radiologically the tumor is indistinguishable from adenocarcinoma and may involve any portion of the stomach. Although the pathogenesis of this lesion remains unclear, most authors favor the "metaplastic theory" for the development of the tumor. In this case it is felt that the tumor probably arose from gastric squamous mucosa present congenitally in the lesser curvature. 相似文献
16.
17.
18.
Jong?Hun?Jun Kyu?Nam?KimEmail authorView authors OrcID profile
return OK on get Ji?Yoon?Kim Shin?Me?Song 《Journal canadien d'anesthésie》2017,64(9):947-961
Purpose
Intranasal dexmedetomidine premedication is a newly introduced method for reducing stress and anxiety before general anesthesia in children. We performed a meta-analysis to identify the effects of intranasal dexmedetomidine premedication in children.Source
We conducted a systematic review to find published randomized-controlled trials using intranasal dexmedetomidine as premedication. We searched databases in EMBASE?, MEDLINE®, and the Cochrane Controlled Trials Register using the Ovid platform. This study was conducted based on the Cochrane Review Methods.Principal findings
This review included 1,168 participants in 13 studies. Intranasal dexmedetomidine premedication provided more satisfactory sedation at parent separation (relative risk [RR], 1.45; 95% confidence interval [CI], 1.19 to 1.76; P = 0.0002; I2 = 80%) than other premedication regimes. In addition, it reduced the need for rescue analgesics (RR, 0.58; 95% CI, 0.40 to 0.83; P = 0.003; I2 = 0%). Nevertheless, there were no differences in sedation at mask induction (RR, 1.25; 95% CI, 0.98 to 1.59; P = 0.08; I2 =71%) or in the incidence of emergence delirium (RR, 0.52; 95% CI, 0.24 to 1.13; P = 0.10; I2 = 67%). Intranasal dexmedetomidine was associated with a significantly lower incidence of nasal irritation (RR, 0.05; 95% CI, 0.01 to 0.36; P = 0.003; I2 = 0%) and postoperative nausea and vomiting (RR, 0.63; 95% CI, 0.40 to 0.99; P = 0.04; I2 = 0%) than other premedication treatments. It also showed significantly lower systolic blood pressure (weighted mean difference [WMD], ?6.7 mmHg; 95% CI, ?10.5 to ?2.9; P = 0.0006; I2 = 96%) and heart rate (WMD, ?6.8 beats·min?1; 95% CI, ?11.3 to ?2.6; P = 0.002; I2 = 98%).Conclusions
Intranasal dexmedetomidine provided more satisfactory sedation at parent separation and reduced the need for rescue analgesics and the incidence of nasal irritation and postoperative nausea and vomiting when compared with other premedication treatments.19.
IN OK SONG SUNG RAN HONG YOUNGBUHM HUH KEUN JAI YOO MI KYOUNG KOONG JONG YOUNG JUN INN SOO KANG 《American journal of reproductive immunology (New York, N.Y. : 1989)》1998,40(1):26-31
PROBLEM: To determine the expression of vimentin and cytokeratin in eutopic and ectopic endometrium of women with both adenomyosis and ovarian endometrioma and to evaluate their cyclic changes during the menstrual cycle. METHOD OF STUDY: Twenty patients requiring hysterectomy with salpingo-oophorectomy were studied by immunohistochemistry according to their menstrual cycles. RESULTS: Cyclic expression of vimentin was noted in eutopic endometrium and adenomyosis, but not in endometrioma. Cytokeratin expression did not change during the menstrual cycles. The mean intensities of epithelial vimentin were significantly different from each other, being the lowest in endometrioma, intermediate in adenomyosis, and the highest in eutopic endometrium. There was no significant difference in intensities of cytokeratin between adenomyosis and endometrioma, but these intensities were significantly lower than that of eutopic endometrium. CONCLUSIONS: Lower intensities of cytokeratin in adenomyosis and endometrioma than in eutopic endometrium suggest that the ectopic endometria may have a lower degree of differentiation regardless of the site. The lower intensity of epithelial vimentin in endometrioma than in adenomyosis during the proliferative phase may reflect decreased functional activity, probably because of a pressure effect on the lining epithelium within the endometrioma. 相似文献
20.
Soo Young Jun Andrew J. Brown Ngee Kiat Chua Ji-Yong Yoon Jeong-Ju Lee Jin OK Yang InSu Jang Su-Jin Jeon Tae-IK Choi Cheol-Hee Kim Nam-Soon Kim 《Gastroenterology》2021,160(4):1194-1207.e28
- Download : Download high-res image (175KB)
- Download : Download full-size image