全文获取类型
收费全文 | 2061篇 |
免费 | 140篇 |
国内免费 | 7篇 |
专业分类
耳鼻咽喉 | 76篇 |
儿科学 | 51篇 |
妇产科学 | 35篇 |
基础医学 | 323篇 |
口腔科学 | 66篇 |
临床医学 | 169篇 |
内科学 | 348篇 |
皮肤病学 | 66篇 |
神经病学 | 99篇 |
特种医学 | 149篇 |
外科学 | 233篇 |
综合类 | 65篇 |
预防医学 | 96篇 |
眼科学 | 122篇 |
药学 | 135篇 |
中国医学 | 13篇 |
肿瘤学 | 162篇 |
出版年
2023年 | 21篇 |
2022年 | 42篇 |
2021年 | 73篇 |
2020年 | 53篇 |
2019年 | 58篇 |
2018年 | 68篇 |
2017年 | 43篇 |
2016年 | 60篇 |
2015年 | 66篇 |
2014年 | 70篇 |
2013年 | 109篇 |
2012年 | 124篇 |
2011年 | 156篇 |
2010年 | 76篇 |
2009年 | 81篇 |
2008年 | 123篇 |
2007年 | 112篇 |
2006年 | 75篇 |
2005年 | 99篇 |
2004年 | 69篇 |
2003年 | 72篇 |
2002年 | 62篇 |
2001年 | 72篇 |
2000年 | 45篇 |
1999年 | 33篇 |
1998年 | 13篇 |
1997年 | 14篇 |
1996年 | 9篇 |
1995年 | 10篇 |
1992年 | 14篇 |
1991年 | 23篇 |
1990年 | 15篇 |
1989年 | 12篇 |
1988年 | 21篇 |
1987年 | 23篇 |
1986年 | 12篇 |
1985年 | 16篇 |
1984年 | 10篇 |
1983年 | 11篇 |
1982年 | 7篇 |
1980年 | 10篇 |
1979年 | 9篇 |
1978年 | 5篇 |
1977年 | 12篇 |
1976年 | 9篇 |
1975年 | 16篇 |
1974年 | 10篇 |
1972年 | 9篇 |
1971年 | 11篇 |
1970年 | 5篇 |
排序方式: 共有2208条查询结果,搜索用时 15 毫秒
1.
A rare case of a maxillo-mandibular band in a 21 year female patient is reported. Possibility of its being a remnant of buccaphary geal membrane is discussed in the light of clinical and histological findings. 相似文献
2.
3.
U A Nayak A P Rao D K Sugumaran Sundaram A L Meenakshi 《Indian journal of dental research》2005,16(1):27-31
Lobster-Claw syndrome is a rare autosomal dominant, hand-foot malformation with Oro-dental features. This is a rare condition and from the available reports so far, cases being reported are less than 1%. Most reports have focused on the hand-foot deformity of this syndrome. This paper highlights the typical Oro-dental features associated with this syndrome such as retained deciduous teeth, hypodontia and variation in crown size, arch length and arch width. 相似文献
4.
5.
6.
7.
8.
The dynamics of synthesis of alpha-fetoprotein (AFP) and albumin have been studied in rat and man by immunocytochemical localization of each protein in the liver and its quantitation in serum at different periods of normal intrauterine and extrauterine life. The proteins are present only in the cytoplasm of hepatocytes. During physiologic development, an inverse relationship exists between the serum concentrations of the two proteins, the latter for each appearing to be directly related to the number of hepatocytes synthesizing it. AFP-containing cells are randomly distributed, while albumin-containing cells are more uniformly spread out. Both, however, are often preferentially located around venous channels. In the case of AFP-containing cells, the last to disappear with advancing postnatal age are seen around the hepatic veins. When both proteins are present in serum, several hepatocytes seem to syntehsize the two simultaneously, though others contain only one of them. It is unlikely that in the physiologic state different populations of hepatocytes are assigned to synthesize AFP and albumin separately. 相似文献
9.
Primary and revision total knee arthroplasty have become common orthopaedic procedures. The operating surgeon, at times, may be faced with a difficult surgical case due to soft tissue contractures or bone deformities. A review of multiple surgical techniques using soft tissue releases and osteotomies are presented including their potential complications. Although these techniques are aimed at the atypical operative case, the operating surgeon may utilize them for ‘routine’ exposures as well. Importance is focused on the functional integrity of the knee extensor mechanism. 相似文献
10.