全文获取类型
收费全文 | 588篇 |
免费 | 30篇 |
国内免费 | 114篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 27篇 |
妇产科学 | 3篇 |
基础医学 | 44篇 |
口腔科学 | 10篇 |
临床医学 | 138篇 |
内科学 | 145篇 |
皮肤病学 | 23篇 |
神经病学 | 7篇 |
特种医学 | 95篇 |
外科学 | 38篇 |
综合类 | 46篇 |
预防医学 | 30篇 |
眼科学 | 15篇 |
药学 | 78篇 |
中国医学 | 4篇 |
肿瘤学 | 26篇 |
出版年
2023年 | 2篇 |
2022年 | 3篇 |
2021年 | 3篇 |
2020年 | 6篇 |
2019年 | 5篇 |
2018年 | 9篇 |
2017年 | 7篇 |
2016年 | 5篇 |
2015年 | 18篇 |
2014年 | 17篇 |
2013年 | 42篇 |
2012年 | 19篇 |
2011年 | 19篇 |
2010年 | 27篇 |
2009年 | 35篇 |
2008年 | 6篇 |
2007年 | 75篇 |
2006年 | 29篇 |
2005年 | 20篇 |
2004年 | 8篇 |
2003年 | 4篇 |
2002年 | 9篇 |
2001年 | 11篇 |
2000年 | 10篇 |
1999年 | 12篇 |
1998年 | 38篇 |
1997年 | 31篇 |
1996年 | 30篇 |
1995年 | 24篇 |
1994年 | 25篇 |
1993年 | 18篇 |
1992年 | 9篇 |
1991年 | 10篇 |
1990年 | 14篇 |
1989年 | 18篇 |
1988年 | 24篇 |
1987年 | 11篇 |
1986年 | 3篇 |
1985年 | 8篇 |
1984年 | 3篇 |
1983年 | 3篇 |
1982年 | 5篇 |
1981年 | 7篇 |
1980年 | 8篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1976年 | 5篇 |
1975年 | 5篇 |
1958年 | 14篇 |
1955年 | 4篇 |
排序方式: 共有732条查询结果,搜索用时 11 毫秒
101.
原位PCR技术及其应用 总被引:1,自引:0,他引:1
目的:阐述原位PCR技术的基本原理,进展,应用及存在问题。方法:通过检索国内,外相关文献,归纳整理,结合实践操作经验,展开分析,结果:原位PCR技术是一种特异性,敏感性较高的靶序列检测定位技术,作为研究基因信息和细胞,染色体等的形态信息的有力工具,尤其是专用原位PCR仪在医学研究(医学检验,病理学领域)上的广泛应用,结论:原位PCR技术的应用推广及研究深入,也存在其技术应用不完善之处。 相似文献
102.
Gynaecological examination of girls during childhood is undertaken somewhat infrequently. These genital examinations should not be taboo or a frightening experience for the girl, for her parents or for the physician. Studies of children suspected of sexual abuse have paid attention to the wide variety of gynaecological conditions already present in childhood. In 1988 we founded a special gynaecological outpatient clinic for girls under 16 y of age at a university hospital to develop the special knowledge and skills needed in children's gynaecology. In this gynaecological clinic for children and adolescents we were able to gain and offer expert knowledge of the problems of this age group. In this special clinic for children, gynaecological examination by special techniques and sonography led to a diagnosis in 71% of the patients without any instrumentation. Children and adolescent girls in need of special gynaecological care should be recognized specifically. Particular attention should be paid to the gynaecological care of victims of child sexual abuse and mentally or physically handicapped girls. In good co-operation with the girl, a gynaecological examination can become a positive experience during the development of female identity. 相似文献
103.
104.
105.
106.
107.
Bosco HM Ma Calvin SH Ng Rebecca KY Lam Song Wan Innes YP Wan Tak Wai Lee Anthony PC Yim 《Canadian respiratory journal》2009,16(4):e50-e52
Pulmonary infection caused by the opportunistic organisms Penicillium marneffei and Stenotrophomonas maltophilia in patients with Job’s syndrome is rare and not well documented. The case of a 30-year-old man with Job’s syndrome who developed recurrent pneumonia and lung abscesses caused by P marneffei and S maltophilia, complicated by massive hemoptysis, is described. Bronchial artery embolization was successful in controlling the hemoptysis; however, the infection proved fatal despite appropriate antimicrobial therapy. A brief review of the literature on Job’s syndrome and its associated infective pulmonary manifestations is also presented. 相似文献
108.
109.
Background
The aim of this paper was to study the prevalence and intensity of Anisakids larvae in the long tail tuna fish captured from Iranian shores of Persian Gulf.Methods
Different organs including skin, abdominal cavity, stomach and intestinal contents, stomach sub serous tissues, liver, spleen, gonads and 20 grams of muscles of 100 long tail tuna fish (Thannus tonggol) caught from waters of the north parts of Persian Gulf were searched for anisakid nematodes larvae. Twenty grams of around the body cavity muscles were digested in artificial gastric juice. Different organs and digested muscles were examined with naked eyes for the presence of anisakids larvae. The collected larvae were preserved in 70% alcohol containing 5% glycerin, and cleared in lactophenol for identification.Results
Our findings revealed that 89% of fish harbored 3rd stage larvae of Anisakis sp. of which 2% were infected with both Anisakis and Raphidascaris. All inspected organs except that of skin were found to be infected, while stomach sub serous tissues were the most infected organ (80%) followed by abdominal cavity (10%), liver (4%), testicle (3%), stomach contents and spleen (2%) and intestinal contents (1%). Intestine and abdominal cavity were the organs harbored Raphidascaris sp. Digested muscles were free of parasite. Mean intensity was low for both species and ranged between 1.5 for Raphidascaris sp. and 3.67 for Anisaki sp.Conclusion
Anisakids larvae especially Anisakis are very prevalent in some fish including tunas of Persian Gulf, and consumption of infected fish if it is not properly cooked may lead to human anisakiasis. 相似文献110.