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   1522篇
  免费   69篇
  国内免费   21篇
耳鼻咽喉   16篇
儿科学   64篇
妇产科学   38篇
基础医学   158篇
口腔科学   50篇
临床医学   144篇
内科学   304篇
皮肤病学   64篇
神经病学   60篇
特种医学   107篇
外科学   211篇
综合类   131篇
一般理论   1篇
预防医学   85篇
眼科学   22篇
药学   126篇
中国医学   1篇
肿瘤学   30篇
  2015年   10篇
  2014年   13篇
  2013年   33篇
  2011年   13篇
  2010年   30篇
  2009年   29篇
  2007年   30篇
  2006年   34篇
  2005年   10篇
  2004年   20篇
  2003年   11篇
  2002年   14篇
  2001年   12篇
  2000年   10篇
  1999年   9篇
  1998年   36篇
  1997年   41篇
  1996年   72篇
  1995年   25篇
  1994年   29篇
  1993年   32篇
  1992年   21篇
  1991年   18篇
  1990年   19篇
  1989年   31篇
  1988年   24篇
  1987年   26篇
  1986年   19篇
  1985年   22篇
  1984年   16篇
  1983年   20篇
  1982年   13篇
  1981年   14篇
  1980年   24篇
  1979年   16篇
  1978年   11篇
  1977年   11篇
  1976年   10篇
  1975年   13篇
  1965年   9篇
  1964年   11篇
  1963年   11篇
  1959年   59篇
  1958年   113篇
  1957年   107篇
  1956年   96篇
  1955年   75篇
  1954年   75篇
  1949年   32篇
  1948年   70篇
排序方式: 共有1612条查询结果,搜索用时 15 毫秒
71.
72.
73.
74.
75.
76.
77.
Delirium Tremens     
The varied clinical manifestations and management of 14 male patients with delirium tremens (DT) have been studied. Eight patients were initially hospitalised for diseases unrelated to ethanol abuse i.e. 2 each for gun shot wound, myocardial infarction and stroke, and one each for pneumonia and gastroenteritis. One patient was going through withdrawal because of prodrome of viral hepatitis before he was hospitalised for uncontrolled agitation and delirium. Two known cases of mild essential hypertension on dietary therapy reported for agitation, abnormal behaviour, a single episode of tonic clonic seizure and hypertensive encephalopathy as they could not/did not get alcohol for 3 days. Three patients presented denovo with DT without concomitant illness. The other features besides delirium and hallucinations were tremulousness in 10, tachycardia in 12, fever in 3, diaphoresis in 2 and tonic clonic seizures in 4 patients. The symptoms fluctuated markedly at short intervals and 2 patients did not have any features of sympathetic overactivity. Altered hepatic biochemical parameters and ketonuria with normal blood sugar were noted in 4 and one patients respectively. Other biochemical parameters including serum electrolytes were normal. CT scan brain done for 5 patients revealed subdural haematoma in one. Cerebro spinal fluid (CSF) and EEG findings were noncontributory. All made good recovery with heavy doses of intravenous vitamin B complex, glucose and oral benzodiazepine. Short course of haloperidol was used in 2 patients. Two patients developed pancreatitis during follow up. All patients made complete recovery, and 8 patients have been followed for 8 to 12 months without relapse. The reason for hospitalisation in such cases is often unrelated to alcohol abuse; hence a detailed history of alcoholism is mandatory to identify those at risk as well as for prompt treatment and decreasing the mortality.Key Words: Alcohol withdrawal, Concomitant illnesses, Delirium, Precipitating events  相似文献   
78.
79.
The hormonal and metabolic response to the first feed of breast milk was studied in 12 infants at 4-6 hours of age. After the feed there was an increase in blood glucose concentration but no changes in the concentrations of lactate, pyruvate, alanine, or ketone bodies. The feed was followed by an increase in the concentrations of plasma insulin, growth hormone, gastrin, and enteroglucagon, but no change in levels of plasma glucagon or gastric inhibitory peptide. Several hormone systems are functionally active at birth and are stimulated by the first feed of milk.  相似文献   
80.
In order to test the hypothesis that integrin and uteroglobin (UG) expression in cultured endometrial cells are affected by hormone treatment, Ishikawa-CH endometrial cancer cells were cultured and exposed to oestradiol or oestradiol and progesterone regimens and assayed using immunohistochemistry. We evaluated the intensity of immunohistochemical staining for the integrin monomers alpha(v) and beta1, the dimers alpha(v)beta3 and alpha(v)beta6, and for the secretory protein uteroglobin under various experimental conditions. Cells grown in control media stained positively for the integrin monomers alpha(v) and beta1, the dimer alpha(v)beta3, and for UG. Oestradiol and sequential oestradiol/progesterone reversibly suppressed staining for the dimer alpha(v)beta3. Hormone treatment had no effect on the staining of the beta1 and alpha(v) monomers or UG. The alpha(v)beta6 dimer antibody did not stain under any experimental treatment conditions. These data indicate that expression of the integrin complex alpha(v)beta3 is reversibly suppressed by oestradiol in Ishikawa cells and that these cells may be a good model for studying hormone-driven molecular changes in endometrium.   相似文献   
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