首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   236篇
  免费   11篇
耳鼻咽喉   12篇
儿科学   93篇
妇产科学   3篇
基础医学   28篇
口腔科学   3篇
临床医学   7篇
内科学   35篇
皮肤病学   4篇
神经病学   14篇
外科学   17篇
综合类   1篇
预防医学   4篇
眼科学   4篇
药学   7篇
中国医学   1篇
肿瘤学   14篇
  2022年   3篇
  2021年   3篇
  2020年   3篇
  2019年   3篇
  2018年   12篇
  2017年   3篇
  2016年   8篇
  2015年   4篇
  2014年   4篇
  2013年   10篇
  2012年   13篇
  2011年   7篇
  2010年   4篇
  2009年   4篇
  2008年   8篇
  2007年   9篇
  2006年   8篇
  2005年   13篇
  2004年   6篇
  2003年   13篇
  2002年   5篇
  2001年   2篇
  2000年   2篇
  1999年   3篇
  1998年   3篇
  1997年   8篇
  1995年   7篇
  1994年   5篇
  1992年   3篇
  1991年   3篇
  1990年   1篇
  1989年   2篇
  1988年   1篇
  1987年   2篇
  1986年   3篇
  1985年   3篇
  1984年   1篇
  1983年   1篇
  1982年   3篇
  1981年   7篇
  1980年   5篇
  1978年   6篇
  1977年   2篇
  1976年   6篇
  1975年   2篇
  1973年   2篇
  1971年   4篇
  1970年   8篇
  1969年   3篇
  1968年   4篇
排序方式: 共有247条查询结果,搜索用时 31 毫秒
61.
The mechanisms and physiology of reproductive function have fascinated scientists throughout time. Recent cellular and molecular level structural studies have provided unprecedented insights into reproductive systems and signaling networks. This 'cutting edge' editorial provides a recent example in each of these areas, namely, the anatomical integrity of the follicle, the molecular structure of activin with its binding partners and the molecular regulation of inhibin. These three examples of structure informing function help explain reproductive health and may provide solutions to reproductive disease.  相似文献   
62.
63.
64.
65.
Nineteen cases of Indian childhood cirrhosis (ICC) were studied for determining prognostic indicators. Lower serum bilirubin and high serum alkaline phosphatase were associated with good prognosis. Mere presence of hyaline did not influence the clinical and biochemical parameters, however excess hyaline formation was associated with rapidly deteriorating course. Extent of reticulin condensation had no specific significance, but extensive fibrosis was associated with low serum alkaline phosphatase level and shorter survival period. There were six survivors in the study with a follow up upto 26 months and repeat liver biopsies in most of them showed very little changes.  相似文献   
66.
Summary 75 children with measles were studied with the following conclusions: There was a high incidence during March, April and May, which declined abruptly with the onset of the monsoon. Younger children were more susceptible to measles, with the ratio of 2.6:1 for boys and girls. Children with malnutrition were more prone to get measles infection and liable to have much dreaded complications. Diarrhoea (57 cases or 76%) and pulmonary involvement (42.6%) were the common complications observed in measles. Encephalitis (2 or 2.6%) and jaundice (1.3%) were also observed. The mortality rate in measles was 26.6%, of which 11 or 14.6% were due to pulmonary complications. From the District Hospital, Hamirpur, U.P.  相似文献   
67.
Wiedemann–Steiner syndrome (WWS) is a rare disorder characterized by hypotonia, postnatal growth restriction, striking facial dysmorphism, and hirsutism. It is caused by heterozygous pathogenic variants in KMT2A. This gene has an established role in histone methylation, which explains the overlap of WWS with syndromes caused by genes involved in chromatin remodeling. We describe an infant with a novel single base pair deletion in KMT2A with features consistent with WWS, as well as additional features of stenosis of aqueduct of Sylvius and broad toes. The usefulness of Face2Gene as a tool for identification of dysmorphology syndromes is discussed, as in this patient, it suggested WWS as the top candidate disorder. To the best of our knowledge, this is the first patient of WWS reported from India, with a novel genotype and expanded phenotype.  相似文献   
68.
We studied 160 cases of Duchenne muscular dystrophy (DMD) drawn from all parts of India, using multiplex PCR of 27 exons. Of these, 103 (64.4%) showed intragenic deletions. Most (69.7%) of the deletions involved exons 45–51. The phenotype of cases with deletion of single exons did not differ significantly from those with deletion of multiple exons. The distribution of deletions in studies from different countries was variable, but this was accounted for either by the small number of cases studied, or by fewer exons analyzed. It is concluded that there is likely to be no ethnic difference with respect to deletions in the DMD gene. Am. J. Med. Genet. 68:152–157, 1997 © 1997 Wiley-Liss, Inc.  相似文献   
69.
Nasal mucocilliary Clearacne (NMCC) was studied in 75 cases of atrophic rhinitis and results were compared with 35 healthy controls using Anderson’s method. Olfaction in atrophic rhinitis decreases but its extent has not been studied earlier. We have tried to quantify olfaction. This was normal in 10.6%, mild hyposmia was seen in 30%, severe in 23.33% and anosmia was present in 36%.  相似文献   
70.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号