全文获取类型
收费全文 | 177018篇 |
免费 | 1097篇 |
国内免费 | 23篇 |
专业分类
耳鼻咽喉 | 1163篇 |
儿科学 | 6678篇 |
妇产科学 | 3020篇 |
基础医学 | 16770篇 |
口腔科学 | 1764篇 |
临床医学 | 12503篇 |
内科学 | 31056篇 |
皮肤病学 | 724篇 |
神经病学 | 16616篇 |
特种医学 | 8920篇 |
外科学 | 28889篇 |
综合类 | 2315篇 |
预防医学 | 18335篇 |
眼科学 | 2764篇 |
药学 | 9577篇 |
中国医学 | 648篇 |
肿瘤学 | 16396篇 |
出版年
2023年 | 55篇 |
2022年 | 98篇 |
2021年 | 130篇 |
2020年 | 97篇 |
2019年 | 145篇 |
2018年 | 22049篇 |
2017年 | 17441篇 |
2016年 | 19603篇 |
2015年 | 1024篇 |
2014年 | 945篇 |
2013年 | 914篇 |
2012年 | 7149篇 |
2011年 | 21200篇 |
2010年 | 18905篇 |
2009年 | 11583篇 |
2008年 | 19560篇 |
2007年 | 21748篇 |
2006年 | 581篇 |
2005年 | 2171篇 |
2004年 | 3364篇 |
2003年 | 4336篇 |
2002年 | 2480篇 |
2001年 | 255篇 |
2000年 | 395篇 |
1999年 | 155篇 |
1998年 | 196篇 |
1997年 | 202篇 |
1996年 | 90篇 |
1995年 | 99篇 |
1994年 | 97篇 |
1993年 | 60篇 |
1992年 | 34篇 |
1991年 | 82篇 |
1990年 | 122篇 |
1989年 | 76篇 |
1988年 | 55篇 |
1987年 | 40篇 |
1986年 | 23篇 |
1985年 | 31篇 |
1983年 | 22篇 |
1982年 | 25篇 |
1980年 | 40篇 |
1969年 | 20篇 |
1939年 | 20篇 |
1938年 | 60篇 |
1937年 | 25篇 |
1935年 | 22篇 |
1934年 | 30篇 |
1932年 | 56篇 |
1930年 | 46篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
Stephen Mannion Xavier Capdevila 《Journal canadien d'anesthésie》2007,54(7):584; author reply 584-584; author reply 585
84.
85.
86.
87.
88.
François Béïque Mohamed Ali Scott MacKenzie Mark Hynes 《Journal canadien d'anesthésie》2007,54(2):158-159
89.
90.
Aims and Objectives The significance of beaten copper appearance (BCA) on skull radiographs in children following surgery for isolated sagittal
craniosynostosis has not been studied. This study was designed to look for any correlation between BCA and symptoms suggestive
of intracranial hypertension in this group of patients.
Materials and Methods Forty-eight consecutive children, who were operated for isolated sagittal synostosis from1987 to 2000 and had postoperative
skull radiographs, were included. Patients were divided into: (a) BCA group (n = 20), consisting of children who had beaten copper appearance on skull radiographs at last follow up, and (b) Non-BCA group
(n = 28), consisting of children who did not have this finding. Records were reviewed to look for symptoms suggestive of intracranial
hypertension, such as headache, head banging, and irritability.
Results Median age at surgery was 4.8 months for BCA group and 4 months for the non-BCA group. Follow up ranged from 4 to 156 months
with a mean of 36.2 months. Total of 28.6% (n = 6) of the children with follow up radiographs done at ≤18 months of age had BCA. The incidence of BCA increased to 83.3%
in children with skull radiographs performed after 48 months of age. In 18 (90%) children, the BCA was ‘diffuse’ with 5 (25%)
children having the maximum possible score of 8. In the BCA group, 45% (n = 9) had symptoms compared to 10.7% (n = 3) in the control group (p = 0.0068).
Conclusions This study suggests a significant number of children with BCA on radiographs develop symptoms suggestive of raised ICP following
surgical treatment in infancy and prolonged follow up may be warranted in this group of patients. 相似文献