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   74321篇
  免费   6910篇
  国内免费   2752篇
耳鼻咽喉   156篇
儿科学   799篇
妇产科学   2052篇
基础医学   3550篇
口腔科学   583篇
临床医学   6774篇
内科学   7818篇
皮肤病学   1182篇
神经病学   2295篇
特种医学   734篇
外国民族医学   7篇
外科学   2652篇
综合类   9162篇
现状与发展   9篇
一般理论   4篇
预防医学   5125篇
眼科学   724篇
药学   32880篇
  51篇
中国医学   3395篇
肿瘤学   4031篇
  2024年   267篇
  2023年   1273篇
  2022年   2001篇
  2021年   2727篇
  2020年   2747篇
  2019年   2740篇
  2018年   2858篇
  2017年   3064篇
  2016年   2906篇
  2015年   2955篇
  2014年   4875篇
  2013年   8496篇
  2012年   4761篇
  2011年   5010篇
  2010年   3893篇
  2009年   3693篇
  2008年   3424篇
  2007年   3392篇
  2006年   3040篇
  2005年   2718篇
  2004年   2346篇
  2003年   2051篇
  2002年   1577篇
  2001年   1470篇
  2000年   1185篇
  1999年   994篇
  1998年   882篇
  1997年   819篇
  1996年   665篇
  1995年   629篇
  1994年   538篇
  1993年   470篇
  1992年   532篇
  1991年   420篇
  1990年   354篇
  1989年   286篇
  1988年   271篇
  1987年   262篇
  1986年   213篇
  1985年   227篇
  1984年   178篇
  1983年   143篇
  1982年   120篇
  1981年   93篇
  1980年   63篇
  1979年   64篇
  1978年   72篇
  1977年   49篇
  1976年   48篇
  1975年   50篇
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
31.
目的评价羟基磷灰石(HA)义眼台作为药物缓释载体减轻眼球摘除义眼台植入术后反应的效果。方法植入HA义眼台前,用地塞米松5mg,庆大霉素8万u,透明质酸酶1500U混合液浸泡HA义眼台15—20min后植入,手术步骤按常规。结果观察术后1周反应情况,52例中51例(98.07%)无疼痛或仅有轻度疼痛;44例(84.62%)结膜无水肿;36例(69.23%)无恶心;16例(30.77%)轻中度恶心;48例(92.31%)无呕吐。与对照组(43例)比较,术后疼痛、结膜水肿、恶心呕吐均较轻,其差别均有统计学意义(P〈0.001)。结论HA义眼台作为药物缓释载体植入眼球肌膜囊内能有效地控制术后反应,减轻患者痛苦。  相似文献   
32.
Abstract: The development of a teaching package for nurse educators on drug and alcohol problems is described and the contents of its 16 modules outlined.  相似文献   
33.
大剂量地塞米松及SOD在实验性脑损伤中的治疗作用   总被引:1,自引:0,他引:1  
大剂量地塞米松和SOD是外伤性脑继发性损害药物治疗的新方案。本实验在豚鼠局灶性脑损伤模型上试用该两种药物,通过脑含水量、灶周伊文斯兰渗出、血CK、Ca和LDH含室及光镜和电镜病理检查等指标。  相似文献   
34.
35.
The authors describe the successful use of an adjunctive group psychotherapy for substance-abusing patients with major psychiatric disorders (bipolar, schizophrenia, schizoaffective, psychotic depression, and atypical psychosis). The group utilizes a psychoeducational approach that focuses on substance abuse causes and consequences, principles of recovery, and relapse prevention strategies. Eight patients with prolonged histories of abuse of cocaine, alcohol, marijuana, or other drugs were enrolled in this weekly group treatment at a community mental health center drug treatment program, while continuing in treatment with their current case manager or primary therapist. Six of the eight patients achieved periods of stable abstinence, documented by self-report, urine toxicology screens, continued group attendance, and improved social functioning. Case examples are utilized to illustrate the group process.  相似文献   
36.
Abstract: Twenty-six part-time students from a variety of professional backgrounds are enrolled in the first year of a Graduate Diploma in Social Science (Drug Dependence) at the Phillip Institute of Technology in Victoria. The course is conducted under the auspices of the School of Social Work and commenced in 1984. It is argued that the graduates from this unique course could play a key role in providing personnel to fill positions in the areas of clinical work, staff development, drug education, programme development and management and research.  相似文献   
37.
The clinical and electrophysiological features of a truncal myoclonus in a 55-year-old man are described. The electromyographic characteristics point toward propriospinal myoclonus. It is suggested that a myoclonic generator was released after use of ciprofloxacin, by antagonising the gamma-aminobutyric acid metabolism.  相似文献   
38.
The authors report a case of erythema multiforme in a 32-year-old woman who was also taking oral terbinafine for an onychomycosis. The patient data analysis showed serological positivity for cytomegalovirus (IgM and IgG) and hepatitis C virus and serological titre of antinuclear antibody was elevated. After a brief review of the literature the authors propose the possibility of virus-drug interaction as a model of adverse drug reactions.  相似文献   
39.
Summary Five compounds which were identified as potential new anticancer drugs inin vitro screening with the human tumor colony forming assay were selected for further evaluation usingin vitro andin vivo models of human ovarian cancer. Three of five compounds were found to inhibitin vitro colony formation of ovarian cancer cell lines derived from both untreated and combination chemotherapy refractory patients. One compound was also found to prolong survival in a human ovarian carcinoma xenograft model system. This compound, chloroquinoxaline sulfonamide, was selected for development and has shown preliminary indication of activity in phase I clinical testing.  相似文献   
40.
A community-based case-finding sample of 1824 narcotic abusers in Stockholm County was used to standardize a set of rating scales in order to reflect levels of personality organization (PO), in the spirit of Kernberg's theory. PO is assumed to be a function of the ego's capacity to endure inner and outer stress, which manifests itself in the frequency and depth of regressions and the rate of recovery from them. The principles of a method, Rating Ego Balance, for charting the person's characteristic pattern of regression are presented, and its psychometric properties are described on the basis of item response theory. The scales have satisfactory reliabilities and maximal discrimination at subneurotic levels of PO. They show strong construct validity in relation to Kernberg's theory.  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