全文获取类型
收费全文 | 512篇 |
免费 | 20篇 |
国内免费 | 21篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 25篇 |
妇产科学 | 5篇 |
基础医学 | 48篇 |
口腔科学 | 31篇 |
临床医学 | 32篇 |
内科学 | 100篇 |
皮肤病学 | 13篇 |
神经病学 | 9篇 |
特种医学 | 95篇 |
外科学 | 55篇 |
综合类 | 51篇 |
预防医学 | 25篇 |
眼科学 | 6篇 |
药学 | 41篇 |
肿瘤学 | 16篇 |
出版年
2022年 | 4篇 |
2021年 | 2篇 |
2020年 | 3篇 |
2019年 | 6篇 |
2018年 | 12篇 |
2017年 | 5篇 |
2016年 | 4篇 |
2015年 | 10篇 |
2014年 | 9篇 |
2013年 | 18篇 |
2012年 | 5篇 |
2011年 | 10篇 |
2010年 | 24篇 |
2009年 | 24篇 |
2008年 | 6篇 |
2007年 | 28篇 |
2006年 | 28篇 |
2005年 | 10篇 |
2004年 | 20篇 |
2003年 | 12篇 |
2002年 | 8篇 |
2001年 | 8篇 |
2000年 | 7篇 |
1999年 | 6篇 |
1998年 | 27篇 |
1997年 | 31篇 |
1996年 | 38篇 |
1995年 | 21篇 |
1994年 | 12篇 |
1993年 | 20篇 |
1992年 | 6篇 |
1991年 | 4篇 |
1990年 | 2篇 |
1989年 | 21篇 |
1988年 | 10篇 |
1987年 | 13篇 |
1986年 | 10篇 |
1985年 | 10篇 |
1984年 | 9篇 |
1983年 | 5篇 |
1982年 | 5篇 |
1981年 | 5篇 |
1980年 | 10篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 6篇 |
1976年 | 5篇 |
1975年 | 5篇 |
1962年 | 1篇 |
1935年 | 1篇 |
排序方式: 共有553条查询结果,搜索用时 15 毫秒
111.
112.
113.
Hepatitis C virus infection and lichen planus: a short review 总被引:2,自引:0,他引:2
OBJECTIVE: To review the current literature regarding the association of lichen planus (LP) and liver disease, with particular attention to the association of the oral variant of the disease with hepatitis C virus (HCV) infection.
MATERIALS AND METHODS: Available literature of the possible association of LP with systemic disorders, in particular chronic hepatic disease, has been reviewed. RESULTS: LP is sometimes associated with infectious or autoimmune disease and/or neoplasia, however an aetio-logical association between LP and these disorders seems unlikely. A more consistent association exists between LP and chronic hepatic disease. The precise cause of this association is not known. However, in the last 6 years a notable association between HCV infection and LP has been observed, particularly in patients in Spain, Italy and Japan. The pathogenesis of this possible HCV-associated LP is not known, but it may involve a cell mediated response to an altered epithelial antigen.
CONCLUSION: There is now evidence to suggest a significant association between HCV infection and LP in some groups of patients. 相似文献
MATERIALS AND METHODS: Available literature of the possible association of LP with systemic disorders, in particular chronic hepatic disease, has been reviewed. RESULTS: LP is sometimes associated with infectious or autoimmune disease and/or neoplasia, however an aetio-logical association between LP and these disorders seems unlikely. A more consistent association exists between LP and chronic hepatic disease. The precise cause of this association is not known. However, in the last 6 years a notable association between HCV infection and LP has been observed, particularly in patients in Spain, Italy and Japan. The pathogenesis of this possible HCV-associated LP is not known, but it may involve a cell mediated response to an altered epithelial antigen.
CONCLUSION: There is now evidence to suggest a significant association between HCV infection and LP in some groups of patients. 相似文献
114.
OBJECTIVE: Patients may have various forms of angioedema and require dental treatment which can cause or contribute to the onset of an episode of angioedema. This paper seeks to highlight the causes and the management of this serious condition.
DESIGN: An outline of the different types of angioedema is given here, along with three case reports which illustrate treatment and management.
SUBJECTS AND METHODS: Three patients who presented to an Oral Medicine clinic with angioedema are presented to illustrate various types of angioedema and the different contributing factors that precipitated episodes of the condition.
MAIN OUTCOME MEASURES: The three patients were all investigated for biochemical and allergic factors which may have caused their disease.
RESULTS: Both drugs and dental materials were shown to be involved in the pathogenesis of angioedema in this short series of patients.
CONCLUSIONS: Dental treatment or the use of some materials may promote or contribute to the disorder. Referral to hospital for specialist care is indicated for certain groups of patients who require invasive dental treatment. The multi-disciplinary team approach in the investigation and management of patients with angioedema is emphasised. 相似文献
DESIGN: An outline of the different types of angioedema is given here, along with three case reports which illustrate treatment and management.
SUBJECTS AND METHODS: Three patients who presented to an Oral Medicine clinic with angioedema are presented to illustrate various types of angioedema and the different contributing factors that precipitated episodes of the condition.
MAIN OUTCOME MEASURES: The three patients were all investigated for biochemical and allergic factors which may have caused their disease.
RESULTS: Both drugs and dental materials were shown to be involved in the pathogenesis of angioedema in this short series of patients.
CONCLUSIONS: Dental treatment or the use of some materials may promote or contribute to the disorder. Referral to hospital for specialist care is indicated for certain groups of patients who require invasive dental treatment. The multi-disciplinary team approach in the investigation and management of patients with angioedema is emphasised. 相似文献
115.
116.
117.
R. Varghese M. Ch. K. Shivaprakasha M.Ch. SR Mohanty M.Ch. KA Hassan MS R Coelho M.Ch. KS Murthy M.Ch. KM Cherian FRACS 《Indian Journal of Thoracic and Cardiovascular Surgery》2001,17(2):82-85
Background Though the use of median stermotomy has been fairly standardized for the approach to the heart and great vessels, since the
advent of cosmetically appealing incisions, thoracotomy has come to be a justifiable alternative incision. This paper presents
our experience with this approach and the advantages over the conventional approach as well as over other incisions for the
correction of intra-cardiac anomalies.
Methods 93 patients underwent open cardiac procedures using the posterior thoracotomy approach since June 1997 to December 2000. There
were 69 patients with ostium secundum atrial septal defects and 12 patients with sinus venous defects. Other anomalies included
perimembranous ventricular septal defects in 3 patients, partial atrioventricular septal defects in 3 patients and transitional
atrioventricular septal defects in 2 patients. Besides these, one patient each underwent atrial septectomy with right modified
Blaloc—Taussing shunt and correction of hemianomalous pulmonary venous connection with intact atrial septum using this approach.
The median age of the patients was 8 years with a range of 10 months to 41 years. 10 patients were males.
Results The median operation time (skin to skin) was 236 minutes. Median bypass times and aortic cross clamp times were 63 minutes
and 31.5 minutes respectively. The median ICU stay was 25.2 hours. There were no significant immediate post operative complications
requiring intervention in any patient. The mean chest drainage was 80 ml per 24 hours. One patient had a superficial wound
dehiscence which healed with daily dressings One patient had atelectasis of the right upper lobe which recovered with chest
physiotherapy. All patients are on regular follow up to assess the status of their scars. One patients developed a mass on
the right atrial free wall following closure of atrial septal defect one year earlier and the underwent reoperation for removal
of the mass. Patients on follow up were interrogated and all were satisfied with the cosmesis of their scars. None of the
patients had any physical disability due to their scars.
Conclusions The limited posterior thoracotomy incision offers a cosmetically attractive approach to the heart in selected patients. The
approach is easy and the techniques reproducible. The technique carries with it no additional risk and has the advantage of
not interfering with future development of the breast in young pre pubertal girls. 相似文献
118.
Genetic and non‐genetic factors that increase the risk of non‐syndromic cleft lip and/or palate development 下载免费PDF全文
119.
120.