全文获取类型
收费全文 | 850篇 |
免费 | 22篇 |
国内免费 | 10篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 33篇 |
妇产科学 | 7篇 |
基础医学 | 64篇 |
口腔科学 | 10篇 |
临床医学 | 59篇 |
内科学 | 104篇 |
皮肤病学 | 29篇 |
神经病学 | 3篇 |
特种医学 | 98篇 |
外科学 | 105篇 |
综合类 | 259篇 |
预防医学 | 29篇 |
眼科学 | 4篇 |
药学 | 31篇 |
肿瘤学 | 46篇 |
出版年
2023年 | 1篇 |
2022年 | 3篇 |
2021年 | 7篇 |
2020年 | 3篇 |
2019年 | 5篇 |
2018年 | 7篇 |
2017年 | 7篇 |
2016年 | 5篇 |
2015年 | 28篇 |
2014年 | 13篇 |
2013年 | 18篇 |
2012年 | 18篇 |
2011年 | 12篇 |
2010年 | 46篇 |
2009年 | 45篇 |
2008年 | 34篇 |
2007年 | 43篇 |
2006年 | 59篇 |
2005年 | 39篇 |
2004年 | 53篇 |
2003年 | 23篇 |
2002年 | 25篇 |
2001年 | 17篇 |
2000年 | 19篇 |
1999年 | 27篇 |
1998年 | 40篇 |
1997年 | 49篇 |
1996年 | 52篇 |
1995年 | 32篇 |
1994年 | 29篇 |
1993年 | 9篇 |
1992年 | 8篇 |
1991年 | 7篇 |
1990年 | 8篇 |
1989年 | 7篇 |
1988年 | 15篇 |
1987年 | 9篇 |
1986年 | 10篇 |
1985年 | 7篇 |
1984年 | 11篇 |
1983年 | 4篇 |
1982年 | 7篇 |
1981年 | 6篇 |
1980年 | 4篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1975年 | 2篇 |
排序方式: 共有882条查询结果,搜索用时 15 毫秒
81.
SKAcharya编者按:本期刊出国际肝病学会分委员会有关专家对急性肝功能衰竭(AHF)和亚急性肝功能衰竭(SHF)命名的建议。此命名将AHF和SHF视为两个独立的疾病,而不是一个综合征的两个亚型,与我国1995年“病毒性肝炎防治方案”中的重型肝炎分类有诸多差别:①病因方面:AHF和SHF由各种病因(病毒、药物和毒物等)所致,而重型肝炎仅以病毒性肝炎为病因;②病程和时间:AHF在症状出现后4周内、SHF在症状出现后1~6个月内发生,而急性或亚急性重型肝炎均在症状出现后10天内或以后(有的定为4~8周内)发生;③症状特征:AHF及… 相似文献
82.
S De D Pan AK Bera V Sreevatsava SK Das S Das T Rana S Bandyopadhyay D Bhattacharya 《Asian Pacific journal of tropical medicine》2010,3(7):519-522
ObjectiveTo study the canine echinococcosis by coproantigen ELISA method.MethodsDuring the present investigation experimental infection was established using evaginated worms of Echinococcus granulosus (E. granulosus). To check cross reactivity two pups were infected with Taenia hydatigena (T. hydatigena). In order to detect the presence of antigen, hyperimmune sera were raised against excretory-secretory products of adult worms E. chinococcus granulosus. Faecal sample collected either from experimentally infected pups or from other sources were heated at 70 °C to detect heat stable soluble antigen.ResultsPups harbouring less than 104 worms showed negative results. Samples collected from 14 days onwards from experimentally infected animals harbouring more than 104 worms showed positive value. The maximum positive samples were detected in samples collected from in and around slaughter house and the least number of samples were detected positive maintained by dog squad.ConclusionsThe affinity purified IgG exhibited promising results for detection of canine echinococcosis by indirect ELISA. 相似文献
83.
84.
NICHOLAS J TALLEY SK LAM KL GOH KM FOCK 《Journal of gastroenterology and hepatology》1998,13(4):335-353
Dyspepsia is most optimally defined as pain or discomfort centred in the upper abdomen. The symptom complex may be caused by peptic ulcer disease, gastro-oesophageal reflux, or gastric cancer but is most often due to functional (or non-ulcer) dyspepsia. While upper endoscopy is the method of choice to determine the underlying cause of dyspepsia, it is expensive. A more pragmatic approach is needed in the Asia-Pacific region where health services are limited. A detailed treatment algorithm is given for managing patients presenting with new-onset dyspepsia and documented functional dyspepsia after endoscopy, and evidence to support this approach is reviewed. Prompt endoscopy is recommended for patients with alarm features. In patients without alarm features, treatment for 2–4 weeks with an empirical anti-secretory or prokinetic agent, followed by investigation using non-invasive Helicobacter pylori testing and treatment for patients who do not respond or relapse, is recommended. Trials of management strategies are now needed to establish the efficacy and cost-effectiveness of the approaches recommended. 相似文献
85.
86.
87.
88.
MÖ Hergüner SK GüneLer DU AltintaL ZN Alparslan M Yilmaz P Aksungur 《Acta paediatrica (Oslo, Norway : 1992)》1997,86(5):454-455
This study was conducted on 1359 healthy, non-smoking Turkish children (727M, 632F) with a mean age of 11.7 ± 3.4 (6–17) years, in order to determine the normal values of peak expiratory flow (PEF) in Turkish children and to compare various peak-flow meters (PEFMs). PEF values increased with age and height in boys and girls. The relative increase in boys was significantly higher at puberty (p < 0.01). The values of Turkish children were found to be similar to those of Europeans. The results obtained from the three PEFMs were closely correlated. 相似文献
89.
90.