全文获取类型
收费全文 | 546篇 |
免费 | 43篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 28篇 |
妇产科学 | 9篇 |
基础医学 | 90篇 |
口腔科学 | 11篇 |
临床医学 | 132篇 |
内科学 | 82篇 |
皮肤病学 | 1篇 |
神经病学 | 21篇 |
特种医学 | 52篇 |
外国民族医学 | 1篇 |
外科学 | 57篇 |
综合类 | 9篇 |
预防医学 | 54篇 |
眼科学 | 7篇 |
药学 | 16篇 |
中国医学 | 1篇 |
肿瘤学 | 15篇 |
出版年
2022年 | 5篇 |
2021年 | 17篇 |
2020年 | 6篇 |
2018年 | 6篇 |
2017年 | 6篇 |
2016年 | 13篇 |
2015年 | 25篇 |
2014年 | 30篇 |
2013年 | 33篇 |
2012年 | 9篇 |
2011年 | 18篇 |
2010年 | 21篇 |
2009年 | 18篇 |
2008年 | 22篇 |
2007年 | 14篇 |
2006年 | 19篇 |
2005年 | 18篇 |
2004年 | 17篇 |
2003年 | 13篇 |
2002年 | 18篇 |
2001年 | 13篇 |
2000年 | 10篇 |
1999年 | 8篇 |
1998年 | 13篇 |
1997年 | 17篇 |
1996年 | 8篇 |
1995年 | 6篇 |
1994年 | 13篇 |
1993年 | 7篇 |
1992年 | 7篇 |
1991年 | 14篇 |
1990年 | 5篇 |
1989年 | 11篇 |
1988年 | 9篇 |
1987年 | 12篇 |
1986年 | 11篇 |
1985年 | 14篇 |
1984年 | 11篇 |
1983年 | 6篇 |
1982年 | 8篇 |
1980年 | 8篇 |
1979年 | 4篇 |
1978年 | 4篇 |
1977年 | 3篇 |
1976年 | 7篇 |
1975年 | 9篇 |
1972年 | 5篇 |
1971年 | 3篇 |
1968年 | 3篇 |
1966年 | 2篇 |
排序方式: 共有589条查询结果,搜索用时 15 毫秒
11.
Langleben D Lamoureux E Marcotte F Schlesinger R Dragatakis L Crowe MJ Langlois Y Lemire F White M 《Thorax》2000,55(3):247-248
A patient who died after surgery for critical mitral stenosis was found to have underlying unrecognised plexogenic pulmonary arteriopathy and familial pulmonary hypertension. The importance of recognising familial pulmonary hypertension is discussed, together with the contribution of genetic and other risk factors to plexogenic pulmonary arteriopathy. 相似文献
12.
Anne EG Lenferink Joanne Magoon Christiane Cantin Maureen D O'Connor-McCourt 《Breast cancer research : BCR》2004,6(5):R514
Introduction
This report describes the isolation and characterization of three new murine mammary epithelial cell lines derived from mammary tumors from MMTV (mouse mammary tumor virus)/activated Neu + TβRII-AS (transforming growth factor [TGF]-β type II receptor antisense RNA) bigenic mice (BRI-JM01 and BRI-JM05 cell lines) and MMTV/activated Neu transgenic mice (BRI-JM04 cell line). 相似文献13.
OBJECTIVE: To assess the antibody response to influenza vaccine of children vertically infected with HIV. DESIGN: Prospective study in HIV infected children vaccinated during the winter of 1994-5. SETTING: Family HIV clinic at St Mary's Hospital, Paddington. SUBJECTS: 25 children, aged 1-11 years, vertically infected with HIV. MAIN OUTCOME MEASURES: Responses to influenza antigens (H1N1-A/Taiwan/1/86, H3N2-A/Shandong/9/93, B/Panama/45/ 90) were tested by haemagglutination inhibition. Antibody responses were assessed according to clinical symptoms and immune function, stratified according to the 1994 revised classification for HIV infection in children. RESULTS: 23 children (92%) had either very low or no detectable antibody before vaccination. New protective antibody responses were made by 10 children (40%): in seven to a single antigen, in two to two antigens, and in one to all three antigens. For each antigen there was an overall small increase in the mean geometric titre of antibody produced, but this only reached a protective level for antigen H1N1 and for children with minimal symptoms. Less symptomatic children were significantly more likely to produce a protective antibody response to influenza vaccination. No association was found between immune function, as measured by CD4 count, and vaccine response. CONCLUSIONS: Only vaccination of the least symptomatic HIV infected children against influenza is likely to be effective. This will not only protect them against influenza, but will also protect other more immunosuppressed and vulnerable members of their families. 相似文献
14.
15.
16.
17.
18.
19.
20.