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   346篇
  免费   18篇
  国内免费   6篇
儿科学   15篇
妇产科学   4篇
基础医学   51篇
口腔科学   3篇
临床医学   63篇
内科学   71篇
皮肤病学   3篇
神经病学   33篇
特种医学   25篇
外科学   54篇
综合类   12篇
预防医学   24篇
眼科学   1篇
药学   10篇
肿瘤学   1篇
  2023年   1篇
  2021年   3篇
  2020年   1篇
  2019年   4篇
  2018年   8篇
  2017年   2篇
  2016年   4篇
  2015年   5篇
  2014年   8篇
  2013年   9篇
  2012年   14篇
  2011年   12篇
  2010年   11篇
  2009年   23篇
  2008年   14篇
  2007年   22篇
  2006年   30篇
  2005年   23篇
  2004年   13篇
  2003年   19篇
  2002年   14篇
  2001年   13篇
  2000年   12篇
  1999年   13篇
  1998年   9篇
  1997年   9篇
  1996年   7篇
  1995年   5篇
  1994年   10篇
  1993年   5篇
  1992年   6篇
  1991年   4篇
  1990年   5篇
  1989年   5篇
  1988年   3篇
  1987年   4篇
  1986年   4篇
  1985年   2篇
  1982年   1篇
  1981年   2篇
  1976年   1篇
  1975年   1篇
  1974年   2篇
  1970年   2篇
  1968年   2篇
  1966年   2篇
  1962年   1篇
排序方式: 共有370条查询结果,搜索用时 9 毫秒
21.
The aim was to investigate patients and therapists perception of receiving and giving dialectical behavioral therapy (DBT). Ten deliberate self-harm patients with borderline personality disorder and four DBT-therapists were interviewed. The interviews were analyzed with qualitative content analysis. The patients unanimously regard the DBT-therapy as life saving and something that has given them a bearable life situation. The patients and the therapists are concordant on the effective components of the therapy: the understanding, respect, and confirmation in combination with the cognitive and behavioral skills. The experienced effectiveness of DBT is contrasted by the patient's pronouncedly negative experiences from psychiatric care before entering DBT.  相似文献   
22.

Background  

The Major Depression Inventory (MDI) is a brief self-rating scale for the assessment of depression. It is reported to be valid because it is based on the universe of symptoms of DSM-IV and ICD-10 depression. The aim of the current preliminary study was to assess the reliability, validity and psychometric properties of the Greek translation of the MDI.  相似文献   
23.
Dengue fever (DF) has become common in western travelers to the tropics. To improve the basis for travel advice, risk factors and dengue manifestations were assessed in 107 Swedish patients for whom DF was diagnosed after return from travel in 1998 and 1999. Patient data were compared with data on a sample of all Swedish travelers to dengue-endemic countries in the same years. Only three of the patients had received pretravel advice concerning DF from their physicians. Hemorrhagic manifestations were common (21 of 74 patients) but caused no deaths. Risk factors for a DF diagnosis were travel to the Malay Peninsula (odds ratio [OR] 4.95; confidence interval [CI] 2.92 to 8.46), age 15-29 years (OR 3.03; CI 1.87 to 4.92), and travel duration >25 days (OR 8.75; CI 4.79 to 16.06). Pretravel advice should be given to all travelers to DF-endemic areas, but young persons traveling to southern and Southeast Asia for >3 weeks (who constituted 31% of the patients in our study) may be more likely to benefit by adhering to it.  相似文献   
24.
25.
A group of girls is described with recurrent urinary tract infections characterized by predominantly lower tract symptoms. Clinical, laboratory, and radiography findings during the period of follow-up are presented. Infection persisted in most patients over several years. Response to medical and surgical treatment was unsatisfactory. The mean interval between the initial and most recent radiological study was 6 1/2 years. No case of renal parenchymal scarring was seen.  相似文献   
26.
A quantitative battery of tests for standing balance is needed in the assessment of functional impairments. The aims of the present study were to obtain stabilometric reference values for healthy females and males, 20-64 years of age, on a stable computerized force platform (AMTI) and to relate the balance data thus obtained to some traditional functional balance tests. Altogether, 152 subjects performed a series of tests. The test battery on the force platform comprised tests of standing with feet close together or on one leg while looking straight ahead or while blindfolded. Traditional functional balance tests were checked and various background data were collected through a questionnaire. Results of a separate test-retest reliability study of the test battery given on the force platform appeared promising, especially for the tests with eyes open. In the main study, results obtained on the force platform correlated significantly (p less than 0.001) with results of most of the functional tests. Women showed higher standing balance as compared with men. The results suggest the importance of relating the test-data not only to age but also to sex.  相似文献   
27.
A survey of health and social service professionals in one Ontario community suggested a generally high level of awareness of alcohol problems, reasonable optimism regarding the benefits of treatment, and positive attitudes toward an innovative assessment/referral service.  相似文献   
28.
29.
患儿,女,4岁,体质量19kg。生后4个月开始进行性面色苍白伴巩膜黄染,血红蛋白65g/L,白细胞和血小板均正常,血红蛋白电泳血红蛋白A48.1%、血红蛋白A24.2%、抗碱血红蛋白47.7%,基因型为β地贫纯合子,诊断为重型β地中海贫血,以间断大量输血维持生命。于2005-12-09在厦门大学附属中山医院血液科接受非亲缘性外周血干细胞移植。预处理方案采用常规氟达拉滨、白消胺、环磷酰胺三药联合方案,以环孢菌素A、霉酚酸酯、抗胸腺淋巴细胞免疫球蛋白联合预防移植物抗宿主病,供受者人类白细胞抗原高分辨全相合,ABO血型次要不合(O-A),输入CD34 干细胞11.4×106/kg。植入成功,移植后12d中性粒细胞>0.5×109L-1,移植后37d血小板>50×109L-1,移植后35d患者血型检测转变为供者血型,患儿血红蛋白达到100g/L的时间是28d,移植后患儿未再输血,血红蛋白维持130g/L以上,整个移植过程顺利,未出现严重感染和移植物抗宿主反应,随访18个月,患儿生活正常,发育良好。  相似文献   
30.
Abstract. A method to coat unsensitized erythrocytes with fragments of C3 and C4 using autologous serum, in order to study complement receptor-dependent function of the fixed macrophage system, is presented. After incubation with serum under optimal conditions, at least 90% of the cells had C3b/iC3b deposited on the surface, with an average of 20 × 103 molecules per cell. Elimination of the coated cells by the fixed macrophage system was studied in 12 normal subjects. With a dose of 4.5 × 108 red cells injected, 75% of the cells were eliminated with a half-life of approximately 2.4 ± 0.3 min (n = 7). In subjects receiving ten times more cells, there was a rapid decrease in the amount of C3-coated cells, reaching a nadir with 85% remaining for 4–6 min, after which there was a gradual release of cells for another 20 min (n = 5). In absolute numbers, 3 × 108 of labeled cells were eliminated regardless of the dose injected. The coating procedure presented here is simple, does not introduce heterologous blood components and makes it possible to control the amount and the degree of fragmentation of the C3 and C4 deposited on the erythrocyte surface.  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