全文获取类型
收费全文 | 1524篇 |
免费 | 218篇 |
国内免费 | 18篇 |
专业分类
耳鼻咽喉 | 15篇 |
儿科学 | 63篇 |
妇产科学 | 45篇 |
基础医学 | 235篇 |
口腔科学 | 25篇 |
临床医学 | 208篇 |
内科学 | 268篇 |
皮肤病学 | 19篇 |
神经病学 | 168篇 |
特种医学 | 51篇 |
外科学 | 197篇 |
综合类 | 25篇 |
一般理论 | 4篇 |
预防医学 | 177篇 |
眼科学 | 51篇 |
药学 | 73篇 |
中国医学 | 1篇 |
肿瘤学 | 135篇 |
出版年
2021年 | 16篇 |
2020年 | 14篇 |
2019年 | 21篇 |
2018年 | 32篇 |
2017年 | 25篇 |
2016年 | 29篇 |
2015年 | 38篇 |
2014年 | 46篇 |
2013年 | 56篇 |
2012年 | 66篇 |
2011年 | 64篇 |
2010年 | 56篇 |
2009年 | 55篇 |
2008年 | 46篇 |
2007年 | 70篇 |
2006年 | 65篇 |
2005年 | 43篇 |
2004年 | 52篇 |
2003年 | 36篇 |
2002年 | 41篇 |
2001年 | 37篇 |
2000年 | 61篇 |
1999年 | 48篇 |
1998年 | 42篇 |
1997年 | 29篇 |
1996年 | 37篇 |
1995年 | 27篇 |
1994年 | 35篇 |
1993年 | 22篇 |
1992年 | 36篇 |
1991年 | 48篇 |
1990年 | 36篇 |
1989年 | 29篇 |
1988年 | 37篇 |
1987年 | 36篇 |
1986年 | 33篇 |
1985年 | 33篇 |
1984年 | 22篇 |
1983年 | 25篇 |
1982年 | 16篇 |
1980年 | 12篇 |
1979年 | 14篇 |
1978年 | 17篇 |
1977年 | 9篇 |
1976年 | 9篇 |
1975年 | 10篇 |
1974年 | 12篇 |
1970年 | 11篇 |
1969年 | 17篇 |
1968年 | 9篇 |
排序方式: 共有1760条查询结果,搜索用时 0 毫秒
1.
2.
3.
SH Lee† CP Choi‡ HC Eun† OS Kwon† 《Journal of the European Academy of Dermatology and Venereology》2006,20(7):860-863
BACKGROUND: On December 26, 2004, the biggest earthquake for 40 years, measuring 9.0 on the Richter scale, triggered a tsunami that pounded the coastal areas of South Asia and East Africa. The effects of the tsunami on skin conditions have not been evaluated. OBJECTIVE: To determine the influence of the tsunami on skin conditions by evaluating the skin problems of patients presenting at hospitals after the tsunami. METHODS: Between 5 and 25 January 2005, two dermatologists evaluated patients who complained of skin problems at an outpatient clinic and emergency room of a general hospital in Banda Aceh, Aceh Province, Indonesia. RESULTS: The total number of patients that presented during the study period was 235 (131 males and 104 females), and they had a total of 265 skin problems. In terms of age distribution, most subjects were in their fourth decade (23.0%), followed by the third (22.6%) and fifth decade (16.6%). The most prevalent skin problems were infections-infestations (32.5%), followed by eczemas (29.8%) and traumatic skin disorders (29.4%). In males, traumatic skin disorders were most common. The great majority of infection-infestation cases involved superficial fungal infections. Contact dermatitis accounted for three-quarters of eczema cases, and mainly involved the arms (40.0%) and legs (27.1%). The majority of traumatic skin disorders were lacerations, punctures and penetrations, and the feet (44.7%) and hands (18.8%) were most frequently affected. CONCLUSIONS: Unhygienic conditions, exposure to a hazardous environment and contact with various objects during and after the tsunami probably increased the prevalence of infections-infestations, traumatic skin disorders and contact dermatitis. To prevent these problems and associated secondary bacterial infections, health-related education and early medical management are required. 相似文献
4.
Bladder mucosa in urethral reconstructions 总被引:6,自引:0,他引:6
5.
6.
7.
G. M. Halliday L. Davies D. A. McRitchie H. Cartwright R. Pamphlett J. G. L. Morris 《Acta neuropathologica》1995,90(1):68-75
A 66-year-old woman presented with an alien limb syndrome without dementia. The course of her illness was unremitting and at autopsy 6 years later her diagnosis was confirmed as corticobasal degeneration without Alzheimer-type pathology. Although the presence of ballooned achromatic cortical neurons and cell loss from the substantia nigra distinguishes such patients, the site and density of achromatic neurons has not previously been quantified. We show that immunohistochemistry for the cell stress protein ubiquitin selectively stains these achromatic neurons, whereas they do not stain for abnormally phosphorylated tau protein. Phosphorylated neurofilament antibodies recognise both ballooned and non-ballooned neurons. In this case, high densities of ubiquitin-positive ballooned neurons were found in frontal cortical regions with the highest densities in layers V and VI of the anterior cingulate cortex. In addition, high densities of ubiquitin-positive ballooned neurons were found in the insular cortex, claustrum and amygdala. These results confirm past reports of frontal pathology, but show that there is also considerable pathology in insular and parahippocampal cortical regions and some subcortical regions. Our findings suggest that the distribution and staining characteristics of ballooned neurons in corticobasal degeneration may help to differentiate these cases pathologically, while the absence of dementia appears to be an important clinical criterion. 相似文献
8.
9.
10.
P S Cartwright 《The Journal of reproductive medicine》1991,36(7):523-524
Persistent trophoblast after salpingostomy occurs in up to 7% of cases of tubal pregnancy. Usually the retained trophoblast is within the fallopian tube, but recent reports have described viable implants on the serosal and omental surfaces. A survey was mailed to 100 members of the American Association of Gynecologic Laparoscopists to determine the incidence of the complication. The 25 respondents reported 14 cases of persistent trophoblast implanted on the pelvic serosal or omental surface. This complication followed 1.9% of the cases managed with laparoscopy and 0.6% managed with laparotomy. Some surgical steps can decrease the likelihood of this complication. Also, the beta-human chorionic gonadotropin level should be monitored postoperatively, even if management was with salpingectomy, and especially if the specimen was fragmented laparoscopically to facilitate its removal. 相似文献