全文获取类型
收费全文 | 300篇 |
免费 | 13篇 |
国内免费 | 4篇 |
专业分类
儿科学 | 11篇 |
妇产科学 | 2篇 |
基础医学 | 16篇 |
口腔科学 | 13篇 |
临床医学 | 21篇 |
内科学 | 66篇 |
皮肤病学 | 1篇 |
神经病学 | 3篇 |
特种医学 | 91篇 |
外科学 | 23篇 |
综合类 | 18篇 |
预防医学 | 16篇 |
眼科学 | 2篇 |
药学 | 12篇 |
肿瘤学 | 22篇 |
出版年
2021年 | 4篇 |
2020年 | 4篇 |
2019年 | 3篇 |
2018年 | 6篇 |
2017年 | 4篇 |
2016年 | 5篇 |
2015年 | 12篇 |
2014年 | 6篇 |
2013年 | 18篇 |
2012年 | 10篇 |
2011年 | 2篇 |
2010年 | 15篇 |
2009年 | 9篇 |
2008年 | 9篇 |
2007年 | 6篇 |
2006年 | 4篇 |
2005年 | 4篇 |
2004年 | 4篇 |
2001年 | 2篇 |
2000年 | 3篇 |
1999年 | 3篇 |
1998年 | 18篇 |
1997年 | 20篇 |
1996年 | 16篇 |
1995年 | 12篇 |
1994年 | 14篇 |
1993年 | 9篇 |
1991年 | 4篇 |
1990年 | 6篇 |
1989年 | 10篇 |
1988年 | 5篇 |
1987年 | 4篇 |
1986年 | 7篇 |
1985年 | 5篇 |
1984年 | 6篇 |
1982年 | 3篇 |
1981年 | 5篇 |
1980年 | 8篇 |
1978年 | 5篇 |
1977年 | 5篇 |
1976年 | 3篇 |
1975年 | 4篇 |
1973年 | 1篇 |
1968年 | 1篇 |
1966年 | 1篇 |
1960年 | 1篇 |
1958年 | 2篇 |
1954年 | 2篇 |
1953年 | 2篇 |
1952年 | 1篇 |
排序方式: 共有317条查询结果,搜索用时 15 毫秒
101.
KR Vinod S Anbazhagan M Suneel Kumar S Sandhya David Banji A Prameela Rani 《亚太热带病杂志(英文版)》2012,2(4):301-306
ObjectiveTo develop transfersomal formulation integrated with piperine intended for vitiligo.MethodsFilm hydration technique was employed in the preparation of transfersomes. Modified diffusion cell, consistency tester were fabricated for ex vivo diffusion studies and spreadability studies respectively while tape stripping method was integrated with tissue extraction in the determination of tissue drug concentration.ResultsWhen film hydration technique was used for, ultradeformable vesicles (transfersomes) of piperine in soabean phosphatidylcholine was formed with (67.11±0.22) to (70.55±3.62) and (60.12±1.04) to (80.43±0.14) mean size (μ) and entrapment efficiency (%) respectively. Transfersomes are capable of crossing the pores in permeability barriers extremely efficient even if the transfersome radius (tr) is much greater than the pore size (rpore) ie., tr/rpore? 0.25 the driven flux rate depends on the transdermal osmotic gradient. The vesicles describes elasto-mechanical character of vesicles while penetrating through the pores. The proviso is that the vesicular membrane elasticity is dynamically to the local stress by the external. Diffusion and Spreadability studies showed maximum diffusion when the lipid was kept minimum. Tape stripping and tissue extraction method for the tissue drug retention showed that (75.25±1.72)% drug was retained in the dermis.ConclusionSpan 80 was preferred over tween 80 in terms of dermal retention. Size and encapsulation was slightly altered by phosphatidylcholine concentration. The kinetics, efficiency and the transfersome mediated transport can be tailored for trans-epidermal, deep tissues and systemic depending on the vesicular composition, dose and form. Thus we have offered a successful drug delivery of piperine targeting the deep epidermis. 相似文献
102.
A 2 year old girl who has Kabuki make-up syndrome with isolated premature thelarche is presented. She has unique ocular abnormalities which have not been reported previously. In the literature at least 85 patients, most of them from Japan, have been reported. This is the first reported non-Japanese Asian case. 相似文献
103.
The seminal report A Policy Framework for Commissioning Cancer Services provides the foundation for a major reorganisation of cancer service provision in England and Wales. One central recommendation of the report, the establishment of a tier of specialised cancer units in each Health Authority Region has raised the fundamental question of where those units are to be located. In particular, a declared objective of the report is for services to be planned to maximise their accessibility to patients. This paper demonstrates a classical method (location-allocation modelling) by which the accessibility criterion can be used to determine the optimal number, location and capacity of units for a given cancer site. The method is illustrated with reference to cervical cancer in Trent Health Authority Region. The implications of the method for the guidance of access-related decisions on the placement of cancer services are considered, and the wider relevance of the method to the organisation of service provision in other branches of medicine is suggested. 相似文献
104.
105.
106.
Acute flank pain: comparison of non-contrast-enhanced CT and intravenous urography 总被引:26,自引:2,他引:24
Smith RC; Rosenfield AT; Choe KA; Essenmacher KR; Verga M; Glickman MG; Lange RC 《Radiology》1995,194(3):789
107.
Leube B; Rudnicki D; Ratzlaff T; Kessler KR; Benecke R; Auburger G 《Human molecular genetics》1996,5(10):1673-1677
Idiopathic torsion dystonia (ITD) is a group of movement disorders which is
usually inherited in an autosomal dominant manner with reduced penetrance.
Most patients with ITD present with focal dystonia at adult age. However,
thus far, this common subform remained unmapped chromosomally. In contrast,
a rare early onset, more generalized form of ITD has been mapped to
chromosome 9q34. Our linkage study in a large pedigree with seven
definitely affected, six possibly affected and 16 phenotypically unaffected
family members assigns an ITD gene for the common focal form with a maximal
lod score of 3.17 to the region telomeric of D18S1153 on chromosome 18p.
相似文献
108.
109.
Background: Stress fracture is the single most common cause for the lost number of manpower days during training. The conventional treatment options begin with rest and cessation of precipitating activity. However the demands of military training provide little tolerance for prolonged periods of rest. In the recent past ultrasound therapy (UST) has been reported to speed up healing of stress fractures. 相似文献
110.