全文获取类型
收费全文 | 2210篇 |
免费 | 106篇 |
国内免费 | 15篇 |
专业分类
耳鼻咽喉 | 53篇 |
儿科学 | 145篇 |
妇产科学 | 104篇 |
基础医学 | 148篇 |
口腔科学 | 109篇 |
临床医学 | 201篇 |
内科学 | 529篇 |
皮肤病学 | 40篇 |
神经病学 | 109篇 |
特种医学 | 129篇 |
外科学 | 451篇 |
综合类 | 27篇 |
现状与发展 | 1篇 |
一般理论 | 1篇 |
预防医学 | 40篇 |
眼科学 | 85篇 |
药学 | 79篇 |
1篇 | |
中国医学 | 11篇 |
肿瘤学 | 68篇 |
出版年
2023年 | 23篇 |
2022年 | 49篇 |
2021年 | 69篇 |
2020年 | 53篇 |
2019年 | 57篇 |
2018年 | 62篇 |
2017年 | 52篇 |
2016年 | 74篇 |
2015年 | 79篇 |
2014年 | 96篇 |
2013年 | 126篇 |
2012年 | 172篇 |
2011年 | 168篇 |
2010年 | 93篇 |
2009年 | 91篇 |
2008年 | 152篇 |
2007年 | 144篇 |
2006年 | 133篇 |
2005年 | 126篇 |
2004年 | 144篇 |
2003年 | 119篇 |
2002年 | 114篇 |
2001年 | 33篇 |
2000年 | 16篇 |
1999年 | 28篇 |
1998年 | 5篇 |
1997年 | 6篇 |
1996年 | 10篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1989年 | 2篇 |
1987年 | 2篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1980年 | 2篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 4篇 |
1973年 | 3篇 |
1971年 | 4篇 |
1970年 | 3篇 |
1969年 | 3篇 |
排序方式: 共有2331条查询结果,搜索用时 15 毫秒
31.
32.
Rengin Çetin Güvenç Nurgül Ceran Tolga Sinan Güvenç Hacer Ceren Tokgöz Yalçin Velibey 《Journal of cardiac failure》2018,24(9):583-593
Background
Involvement of right-sided heart chambers (RSHCs) in patients infected with human immunodeficiency virus (HIV) is common and is usually attributed to pulmonary arterial or venous hypertension (PH). However, myocardial involvement in patients with HIV is also common and might affect RSHCs even in the absence of overt PH. Our aim was to define morphologic and functional alterations in RSHC in patients with HIV and without PH.Methods and Results
A total of 50 asymptomatic patients with HIV and 25 control subjects without clinical or echocardiographic signs for PH were included in the study. Transthoracic echocardiography was used to obtain measurements. Patients with HIV had significantly increased right ventricular end-diastolic diameter (RVEDD) and right ventricular free wall thickness (RVFWT), as well as increased right atrial area and pulmonary arterial diameter, compared with control subjects. After adjustment for age, sex, and body surface area, RVFWT (average 1.81 mm, 95% confidence interval [CI] 0.35–3.26 mm) and RVEDD (average 6.82 mm, 95% CI 2.40–11.24 mm) were significantly higher in subjects infected with HIV. More patients with right ventricular hypertrophy were on antiretroviral treatment, and RVFWT was on average 1.3 mm higher (95% CI 0.24–2.37 mm) in patients on antiretroviral treatment after adjustment for confounders.Conclusions
These findings suggest that alterations in RSHCs were present in patients with HIV without PH. 相似文献33.
34.
Topaloglu R Ozaltin F Yilmaz E Ozen S Balci B Besbas N Bakkaloglu A 《Annals of the rheumatic diseases》2005,64(5):750-752
BACKGROUND: Familial Mediterranean fever (FMF) is one of the periodic fever syndromes. It is common among Turks, Jews, Arabs, and Armenians. Several mutations in the MEFV gene, including E148Q, have been identified as causing this disease. It has been suggested that the E148Q mutation is the mildest mutation and some reports have questioned its disease association. OBJECTIVE: To evaluate the phenotypic features of the patients with E148Q mutation. SUBJECTS: 26 patients homozygous for E148Q, 10 compound heterozygous for E148Q, and eight complex cases were assessed. RESULTS: Although four of the 26 patients with E148Q/E148Q were asymptomatic at the time of evaluation, abdominal pain was seen in 77% of the patients, fever in 66%, arthralgia in 50%, arthritis in 15.4%, and vomiting in 23.8%. Compound heterozygotes and complex cases had a higher frequency of abdominal pain, fever, arthralgia, arthritis, myalgia, and chest pain than subjects who were homozygous for E148Q, but none of these symptoms reached statistical significance. None of our patients had amyloidosis but two with E148Q/E148Q had a family history of amyloidosis and one had rapidly progressive glomerulonephritis secondary to vasculitis, which progressed to chronic renal failure. CONCLUSIONS: Patients homozygous for E148Q have a heterogeneous clinical presentation. Most are symptomatic and colchicine treatment is required in these patients. 相似文献
35.
36.
Garber AJ King AB Del Prato S Sreenan S Balci MK Muñoz-Torres M Rosenstock J Endahl LA Francisco AM Hollander P;NN- 《Lancet》2012,379(9825):1498-1507
37.
38.
Reported here is a 35-year-old man with findings of thoracic outlet syndrome and bilateral segmental vitiligo on C8–T1 dermatomes. The possible causal relationship between the two disorders under the common denominator of cervical sympathetic involvement is discussed for the first time in the literature. 相似文献
39.
Selcuk Aslan Zeynep Gulcat F Selda Albayrak Isil Maral Sinan Yetkin Levent Sutcigil 《International journal of psychiatry in clinical practice》2013,17(1):52-58
Objective. Characteristics of insomnia symptoms in Turkey are not well established. The goal of this study was to determine the prevalence of insomnia and related symptoms in an urban district of Turkey. Method. The study was carried out in Ankara, in an urban district with a population of 2665. Out of the 1332 people in the sample, 1034 in the 15–65 age range were included in the study. Interviews were conducted according to the “Sleep Disorders Assessment Questionnaire” developed by the researchers. The Insomnia Severity Index (ISI) was also given to the subjects with a sleep problem to measure the subjective quality and quantity of insomnia symptoms. Results and conclusion. A total of 29.4% of all participants reported a sleep problem, out of which 23.7% defined one or more of the insomnia symptoms which included difficulty initiating sleep (DIS), difficulty maintaining sleep (DMS), early morning awakening (EMA), non-restorative sleep (NRS) and sleep deprivation (SD). Insomnia risk was found to be significantly increased with age, female sex, smoking and chronic medical illness. A total of 75.9% of participants who reported insomnia symptoms did not seek medical help for their complaint. According to the ISI, among the subjects with insomnia symptoms, 79 (32.2%) had subthreshold insomnia, 43 (17.6%) had clinical insomnia, 12 (4.9%) had severe clinical insomnia, while 88 (35.9%) did not score in the range indicating insomnia. The findings are discussed in the light of previous research and in relation to sociocultural factors emphasizing the need for public education on sleep disorders as medical conditions. 相似文献
40.
Hakan Arslan Leyla Benan Ayrancı Ertugrul Karatas Hüseyin Sinan Topçuoğlu Muhammet Selim Yavuz Bertan Kesim 《Journal of endodontics》2013