全文获取类型
收费全文 | 874篇 |
免费 | 22篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 42篇 |
儿科学 | 43篇 |
妇产科学 | 55篇 |
基础医学 | 63篇 |
口腔科学 | 19篇 |
临床医学 | 53篇 |
内科学 | 181篇 |
皮肤病学 | 6篇 |
神经病学 | 41篇 |
特种医学 | 56篇 |
外科学 | 235篇 |
综合类 | 10篇 |
预防医学 | 24篇 |
眼科学 | 9篇 |
药学 | 20篇 |
中国医学 | 1篇 |
肿瘤学 | 43篇 |
出版年
2024年 | 1篇 |
2023年 | 3篇 |
2022年 | 6篇 |
2021年 | 14篇 |
2020年 | 14篇 |
2019年 | 12篇 |
2018年 | 15篇 |
2017年 | 8篇 |
2016年 | 27篇 |
2015年 | 20篇 |
2014年 | 37篇 |
2013年 | 50篇 |
2012年 | 79篇 |
2011年 | 68篇 |
2010年 | 41篇 |
2009年 | 35篇 |
2008年 | 86篇 |
2007年 | 84篇 |
2006年 | 70篇 |
2005年 | 86篇 |
2004年 | 46篇 |
2003年 | 39篇 |
2002年 | 30篇 |
2001年 | 6篇 |
2000年 | 3篇 |
1999年 | 7篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1996年 | 1篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 3篇 |
排序方式: 共有901条查询结果,搜索用时 0 毫秒
31.
32.
Yusuf Hidir Fuat Tosun Mehmet Ali Saracli Armagan Gunal Mustafa Gulec Sertac Yetiser 《European archives of oto-rhino-laryngology》2008,265(4):415-419
The aim of this study is to investigate intranasal fungal incidence in Turkish patients with chronic rhinosinusitis (CRS).
One hundred patients with CRS and 40 healthy subjects as a control group were included in the prospective study. Nasal lavage
samples were investigated for the presence of fungus, using new culture techniques and histopathologic examination. Epidermal
and intradermal hypersensitivity tests were used to find out fungal atopy. Levels of serum eosinophils, total IgE and presence
of fungus-specific IgE were investigated in the blood samples. Quantitative parameters were analyzed using Pearson χ2 test. Allergic fungal sinusitis (AFS) was diagnosed in 13(13%) patients. There was no fungal growth in the control group.
Eosinophilic mucin was detected in 94% of patients. Clinical and laboratory parameters of CRS were not significantly different
in patient groups with or without intranasal fungi. As a result, fungal incidence was not as high as expected in Turkish patients
with CRS. Furthermore, no significant correlation could be found between presence of intranasal fungus and type-1 hypersensitivity
in patients with CRS. 相似文献
33.
34.
35.
36.
Foreign body asphyxiation in children 总被引:3,自引:0,他引:3
We aimed to investigate the frequency and epidemiological features of deaths due to foreign body asphyxiation (FBA) in childhood, over 1990-2003. Of the victims, 14 (63.6%) were male and 8 (36.4%) females. The mean age of the victims was 2.2 +/- 0.6 years. There were 20 (90.9%) children between 1 and 3 years, and two other cases at 2/12 and 5 years of ages. All aspirations had occurred at home. Eight (36.4%) of the victims were dead on arrival, 11 (50%) on intervention, and 3 (13.6%) after complications. Food material was the most commonly aspirated foreign body in 81.8% of the cases, nuts being the most common (50%). Food asphyxiation remains a common problem particularly in children between 1 and 3 years of age in our region. These fatal accidents can be prevented by parental education and early recognition and management of the situation. 相似文献
37.
Aydin M Fuat Yapar A Savas L Reyhan M Pourbagher A Turunc TY Ziya Demiroglu Y Yologlu NA Aktas A 《Nuclear medicine communications》2005,26(7):639-647
AIMS: To describe the distribution of bone and joint involvement in 197 patients with brucellosis, and to detail a spectrum of findings on bone scintigraphy in 38 patients with brucellar spondylitis. METHODS: One hundred and ninety-seven patients (141 females, 56 males; age range, 5-77 years) with osteoarticular brucellosis were studied. Patients were classified into acute (62%) and chronic (38%) stages of the disease, and into age groups of less than 16 (1%), 16-30 (17%), 31-45 (29%), 46-60 (37%) and over 60 (16%) years. All patients were evaluated with Tc-methylene diphosphonate bone scanning. Quantification of sacroiliac joint uptake was performed to improve the sensitivity for the detection of sacroiliitis. Plain radiography and computed tomography (CT) or magnetic resonance imaging (MRI) were performed, when required, to evaluate the areas of the skeleton that showed abnormal uptake on the bone scan. MRI and single photon emission computed tomography (SPECT) were performed in all patients who had spinal lesions. RESULTS: The sites most commonly affected were the sacroiliac joints (53%) and spine (19%), followed by the shoulders (16%). Osteoarticular involvement was more common in females (72%) than in males (28%), and the acute stage (62%) was observed more than the chronic stage (38%). Bone and joint involvement occurred at any age, but the most common age group was 46-60 years. Eight scintigraphic patterns were identified in spinal involvement. CONCLUSION: Brucellosis may affect the musculoskeletal system at any site. Bone scan is a useful method to detect osteoarticular involvement in cases of relapse and progression. Spine involvement has the widest range of scintigraphic findings. A knowledge of the location and distribution of osteoarticular involvement as revealed on the bone scan of patients with brucellosis may be valuable in patient treatment and management. 相似文献
38.
Ozdemir I Demirci F Yücel O Simsek E Yildiz I 《European journal of obstetrics, gynecology, and reproductive biology》2004,113(1):100-102
We followed up a pregnant woman with Addison's disease diagnosed before conception. She presented with hyperemesis gravidarum. Throughout pregnancy, she received prednisone and the basic disease did not deteriorate during pregnancy. She was delivered by caesarean section due to breech presentation. The fetal prognosis was good. 相似文献
39.
Scrotal incision orchiopexy for undescended testis 总被引:2,自引:0,他引:2
40.
Skeletal tuberculosis (TB) is less common than the pulmonary form. Involvements of the metacarpals and phalanges of the hand are infrequent. The authors report their experience with treatment and outcome of TB of the metacarpals and phalanges of the hand in 7 patients. There were 4 women and 3 men in the study who ranged in age from 3 to 60 years (average age, 22.7 years). The duration of complaints at presentation ranged from 4 to 17 months (average, 9 months). The most common presentation was pain and swelling. The presumptive preoperative diagnoses were bone tumor in 4 patients, spina ventosa in 2, and chronic pyogenic osteomyelitis in 1 patients. The results of the laboratory examination showed a mild increase in the erythrocyte sedimentation rate. No patient had an active tubercular lesion or history of pulmonary disease. The diagnosis was based on the clinical picture and radiographic features, and was confirmed by open biopsy. No patient had bony debridement or arthrodesis to control the infection. The treatment of all patients began with a 4-drug regimen for 2 months, followed by a 2-drug regimen for 10 months. The mean follow-up was 30.28 months (range, 16-52 months). At the time of the last follow-up, all lesions had healed with no recurrence. The functional results were satisfactory in all patients. One patient with thumb metacarpophalangeal TB had joint irregularity and thumb metacarpal shortening. Arthrodesis was not needed in any patient. TB of the metacarpals and phalanges of the hand can be difficult to diagnose during the early stages. TB should be suspected in cases of long-standing pain and swelling in the metacarpals and phalanges. It is necessary to keep TB in mind when making the differential diagnosis of several osseous pathologies. 相似文献