全文获取类型
收费全文 | 272篇 |
免费 | 14篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 7篇 |
妇产科学 | 11篇 |
基础医学 | 13篇 |
口腔科学 | 6篇 |
临床医学 | 48篇 |
内科学 | 79篇 |
皮肤病学 | 10篇 |
神经病学 | 9篇 |
特种医学 | 6篇 |
外科学 | 74篇 |
综合类 | 5篇 |
预防医学 | 6篇 |
眼科学 | 2篇 |
药学 | 5篇 |
肿瘤学 | 2篇 |
出版年
2023年 | 3篇 |
2022年 | 9篇 |
2021年 | 6篇 |
2020年 | 5篇 |
2019年 | 10篇 |
2018年 | 7篇 |
2017年 | 8篇 |
2016年 | 16篇 |
2015年 | 13篇 |
2014年 | 13篇 |
2013年 | 16篇 |
2012年 | 36篇 |
2011年 | 30篇 |
2010年 | 13篇 |
2009年 | 8篇 |
2008年 | 13篇 |
2007年 | 15篇 |
2006年 | 24篇 |
2005年 | 21篇 |
2004年 | 7篇 |
2003年 | 3篇 |
2002年 | 3篇 |
2001年 | 2篇 |
2000年 | 3篇 |
1998年 | 1篇 |
1997年 | 1篇 |
排序方式: 共有286条查询结果,搜索用时 31 毫秒
91.
Cemil G?ya Alpaslan Yavuz Cihad Hamidi Mehmet Güli ?etin?akmak Memik Teke Salih Hattapo?lu Abdurrahim Du?ak 《Journal of thoracic disease》2014,6(6):752-759
Objective
The aim of this study is to investigate the prognostic values of initial radiologic findings and preexisting medical conditions in pneumonia caused by H1N1 influenza virus that were obtained during the novel swine-origin influenza A (H1N1) virus (S-OIV) pandemic spread.Methods
Thirty-nine patients hospitalized due to H1N1 infection between September and December 2009 were retrospectively evaluated regarding the radiologic and clinical aspects. The thoracic computed tomography (CT) findings of all patients were assessed and accompanying conditions that may raise the morbidity were stated. The patients were divided into two groups as those who needed the intensive care unit administration and those treated with brief hospitalization; initial radiologic findings and preexisting medical situations of patients were compared among both groups respectively in terms of their prognostic value.Results
In 39 patients with H1N1 infection (21 males and 18 females; mean age of 53.9±14 in range between 19 and 99 years); the necessity of intensive care was significantly higher in patients with solely chronic obstructive pulmonary disease (COPD) (P=0.008, Odds ratio: 27) or co-existence of COPD and malignity (Odds ratio: 13); however, no statistically significant difference between two groups was observed regarding the radiologic facts or other combinations of accompanying medical conditions in terms of any effects to the prognosis.Conclusions
In the H1N1 (S-OIV) pandemic, we observed that merely the contribution to the diagnostic process; the radiologic features have no significance as being prognostic indicator. Additionally; the superposition of H1N1 infection in patients with either COPD or COPD by malignity was stated to be a potential risk factor in terms of increased morbidity. 相似文献92.
93.
Fibromyalgia syndrome (FMS) profoundly impacts patients’ quality of life with its symptoms and clinical signs. Fibromyalgia syndrome impairs daily living activities, reduces work efficiency and raises health-related costs. Although the prevalence rates vary depending on geographical location and diagnostic criteria, it is a common disorder worldwide. Females have a higher prevalence of fibromyalgia syndrome, with varied rates, and there is an increase in prevalence rates with age.Although its etiopathogenesis has not been fully elucidated, various hypotheses have been proposed that central sensitization is at the core of the process. Fibromyalgia syndrome diagnostic approaches have advanced significantly over time, moving away from pain assessments alone and emphasizing multiple clinical signs of FMS. This condition has raised physicians’ and researchers’ awareness of non-pain symptoms. Considering the complicated etiopathogenesis of fibromyalgia syndrome, diverse pathways connected with symptoms, and multiple clinical presentations, it becomes clear that drug and non-drug treatments should be chosen in combination. 相似文献
94.
Aydin Unal Murat Hayri Sipahioglu Ismail Kocyigit Onur Tunca Bulent Tokgoz Oktay Oymak 《Renal failure》2016,38(2):238-241
Aim: Peritoneal dialysis (PD) patients have different peritoneal membrane permeability (transport) characteristics. High peritoneal membrane permeability is associated with increased mortality risk in the patient population. In this study, we aimed to investigate possible risk factor(s) related to high peritoneal membrane permeability. Patients and method: The study included 475 PD patients (46.1?±?14.5 years of mean age; 198 female and 277 male). The patients were divided two groups according to peritoneal equilibration test (PET) result: high-permeability group (high and high-average) and low- permeability group (low-average and low). Results: In both the univariate and multivariate logistic regression analyses, it was found that diabetes mellitus and hypoalbuminemia was significantly associated with high peritoneal membrane permeability [relative risk (RR): 1.90, 95% confidence interval (CI): 1.26–2.86, p: 0.002 and RR: 2.14, 95% CI: 1.44–3.18, p<0.001, respectively]. Conclusion: Diabetes mellitus and hypoalbuminemia were closely associated with high peritoneal membrane permeability. Diabetic patients had 1.9 times the likelihood of having high permeability. However, the relationship between hypoalbuminemia and high peritoneal permeability appears to be a result rather than cause. 相似文献
95.
Celil Alemdar Mehmet Akif Çaçan Abdurrahim Dusak Emin Özkul Ramazan Atiç Ahmet Kapukaya 《International orthopaedics》2016,40(7):1481-1487
Purpose
The aim of this study was to compare CT-assisted percutaneous excision, which is a closed, economic method and a more cosmetic approach, and open surgery in the treatment of osteoid osteoma.Materials and methods
Fifty-three patients (12 female and 41 male patients) who had percutaneous excision (n?=?24) and open surgery (n?=?29) were evaluated retrospectively. The mean age was 16.6 years and the mean duration of follow-up was 53.5 months. During percutaneous excision, a trephine was advanced through the labeling wire and the site, including the nidus, was excised en-bloc and the incision walls were curetted. During the open surgery, the localization of the nidus was marked using c-arm X-ray and the nidus was accessed by lifting the cortical bone, layer-by-layer, using burr. The nidus was excised and its cavity curetted.Results
The result was successful in 22 and a failure in three patients who had closed excision. The result was successful in 20 and a failure in nine patients who had open surgery. The mean duration of operation was 44.37 minutes in the percutaneous excision group and 80.6 minutes in the open surgery group. There was no difference in the pre-operative VAS values between the two groups, whereas the post-operative VAS values were statistically significantly different. There was also a statistically significant difference in the duration of the operation and the length of the hospital stay between the groups.Conclusion
Percutaneous excision with trephine is a more successful, effective, minimally invasive, safe and a better cosmetic approach in the treatment of osteoid osteoma. This method is also a cheap method that does not require expensive equipment.96.
Necmi Eren Ozkan Gungor Ismail Kocyigit Fatma Betul Guzel Ertugrul Erken Orcun Altunoren Erhan Tatar Eray Eroglu Egemen Senel Bulent Kaya Saime Paydaş Bilen Onan Safak Sahin Mumtaz Yilmaz Sena Ulu Meltem Gursu Abdullah Ozkok Abdulmecit Yildiz Ilhan Kurultak Ali Rıza Ucar Mehmet Tanrisev Kenan Turgutalp Mehmet Nuri Turan Can Huzmeli Zeki Soypacaci Hakan Akdam Bulent Huddam Zelal Adibelli Ekrem Kara Ayca Inci Ercan Turkmen Hikmet Tekce Ayhan Dogukan Aydin Turkmen 《International urology and nephrology》2018,50(11):2067-2072
Purpose
Renal infarction is a clinical condition which is caused by renal artery occlusion and leads to permanent renal parenchymal damage. In the literature, there are generally case reports on this subject, and few studies that include a large group of patients. Therefore, we aimed to present the data of a large group of patients who were diagnosed with acute renal infarction in our country in this retrospective study.Methods
The data of patients who were diagnosed with acute renal infarction according to clinical and radiological findings in Turkey in the last 3 years were examined. For this purpose, we contacted with more than 40 centers in 7 regions and obtained support from clinically responsible persons. Demographic data of patients, laboratory data at the time of diagnosis, tests performed for etiologic evaluation, given medications, and patients’ clinical status during follow-up were obtained from databases and statistical analysis was performed.Results
One-hundred and twenty-one patients were included in the study. The mean age was 53?±?1.4 (19–91) years. Seventy-one (58.7%) patients were male, 18 (14.9%) had diabetes, 53 (43.8%) had hypertension, 36 (30%) had atrial fibrillation (AF), and 6 had a history of lupus?+?antiphospholipid syndrome (APS). Forty-five patients had right renal infarction, 50 patients had left renal infarction, and 26 (21.5%) patients had bilateral renal infarction. The examinations for the ethiologies revealed that, 36 patients had thromboemboli due to atrial fibrillation, 10 patients had genetic anomalies leading to thrombosis, 9 patients had trauma, 6 patients had lupus?+?APS, 2 patients had hematologic diseases, and 1 patient had a substance abuse problem. Fifty-seven (57%) patients had unknown. The mean follow-up period was 14?±?2 months. The mean creatinine and glomerular filtration rate (GFR) values at 3 months were found to be 1.65?±?0.16 mg/dl and 62?±?3 ml/min, respectively. The final mean creatinine and GFR values were found to be 1.69?±?0.16 mg/dl and 62?±?3 ml/min, respectively.Conclusions
Our study is the second largest series published on renal infarction in the literature. More detailed studies are needed to determine the etiological causes of acute renal infarction occurring in patients.97.
98.
OBJECTIVES: The metabolism of cells in inflammatory and noninflammatory arthritic joint diseases is subject to complex environmental controls. The aim of the present study was to investigate the total antioxidant capacity (TAC), levels of lipid peroxidation (LPO), and antioxidant enzyme activities in patients with rheumatoid arthritis (RA) and osteoarthritis (OA). DESIGN AND METHODS: Plasma levels of TAC, malondialdehyde (MDA), the activities of some erythrocyte antioxidant enzymes, as well as erythrocyte sedimentation rates (ESR) were estimated in patients with RA and OA and compared with controls. RESULTS: The plasma TAC levels were significantly lower in the RA group than the OA and control group (P < 0.05). Plasma MDA concentrations were significantly higher in patients with RA than those with OA and healthy subjects (P < 0.05). Erythrocyte GSH-Px and CAT activities were found to be significantly lower in patients with RA than those with OA and healthy subjects (P < 0.05, P < 0.05, respectively). However, there were no significant differences in erythrocyte SOD activities between the groups (P > 0.05). ESR were significantly higher in RA patients than in healthy subjects and patients with OA (P < 0.01). Moreover, there were significant negative correlations between TAC vs. MDA, ESR vs. TAC, and a positive correlation between ESR vs. MDA in the RA group (r = -0.398, P < 0.05; r = -0.422, P < 0.05; r = 0.530, P < 0.05, respectively). CONCLUSIONS: Our results demonstrated that levels of LPO are increased in patients with RA compared to patients with OA. In addition, plasma TAC levels are decreased in RA due to its inflammatory character. We conclude that detecting plasma TAC levels with this novel method may be used as a routine and rapid test to verify the levels of oxidative stress in RA. Furthermore, correlating TAC and LPO levels with acute phase reactants such as ESR may give some clues about disease activity in RA. 相似文献
99.
100.
Ozdemir E Kocyigit P Bostanci S Okcu-Heper A Aksu D Gurgey E 《Journal of cutaneous pathology》2004,31(5):401-405
Epithelioid sarcoma (ES) typically arises as a firm nodule on the extremities of young men. The tumor is remarkable for diagnostic difficulties both clinically and histopathologically resulting in a high frequency of initial misdiagnosis. ES is also known to have a high rate of recurrence and high rate of metastasis predominantly to the lymph nodes, lungs, and scalp. Herein, the second case of ES with metastasis to the tongue is reported. 相似文献