全文获取类型
收费全文 | 1443202篇 |
免费 | 121119篇 |
国内免费 | 12311篇 |
专业分类
耳鼻咽喉 | 17653篇 |
儿科学 | 44684篇 |
妇产科学 | 37492篇 |
基础医学 | 194089篇 |
口腔科学 | 38121篇 |
临床医学 | 134041篇 |
内科学 | 291901篇 |
皮肤病学 | 33461篇 |
神经病学 | 114940篇 |
特种医学 | 59572篇 |
外国民族医学 | 300篇 |
外科学 | 219247篇 |
综合类 | 52870篇 |
现状与发展 | 25篇 |
一般理论 | 421篇 |
预防医学 | 116473篇 |
眼科学 | 30406篇 |
药学 | 105029篇 |
88篇 | |
中国医学 | 8447篇 |
肿瘤学 | 77372篇 |
出版年
2021年 | 12042篇 |
2018年 | 15769篇 |
2017年 | 13200篇 |
2016年 | 15437篇 |
2015年 | 18463篇 |
2014年 | 25395篇 |
2013年 | 35700篇 |
2012年 | 44897篇 |
2011年 | 48077篇 |
2010年 | 31640篇 |
2009年 | 30208篇 |
2008年 | 43634篇 |
2007年 | 46021篇 |
2006年 | 46607篇 |
2005年 | 44458篇 |
2004年 | 41425篇 |
2003年 | 40651篇 |
2002年 | 37627篇 |
2001年 | 68990篇 |
2000年 | 70183篇 |
1999年 | 58095篇 |
1998年 | 17580篇 |
1997年 | 15936篇 |
1996年 | 16612篇 |
1995年 | 16750篇 |
1994年 | 15541篇 |
1993年 | 14453篇 |
1992年 | 47398篇 |
1991年 | 46013篇 |
1990年 | 44194篇 |
1989年 | 42000篇 |
1988年 | 38914篇 |
1987年 | 38213篇 |
1986年 | 35961篇 |
1985年 | 34728篇 |
1984年 | 26412篇 |
1983年 | 22150篇 |
1982年 | 13881篇 |
1981年 | 12468篇 |
1980年 | 11735篇 |
1979年 | 23568篇 |
1978年 | 17101篇 |
1977年 | 14394篇 |
1976年 | 13203篇 |
1975年 | 13734篇 |
1974年 | 16103篇 |
1973年 | 15422篇 |
1972年 | 14181篇 |
1971年 | 13049篇 |
1970年 | 11897篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
21.
通过文献研究、问卷调查、专家访谈、现地调研等方法,分析医院离退休干部参与社会治理的现状及影响因素,探讨社区对离退休干部参与社会治理的需求,提出通过党建引领医院离退休干部参与社会治理的“1235”模式,并给出具体的操作路径,以期为推动医院离退休干部积极参与社会治理提供参考。 相似文献
22.
T. Kapellen A. Galler K. Claus S. Heger D. Härtig Prof. Dr. W. Kiess 《Der Diabetologe》2006,2(2):167-181
Type 1 diabetes is one of the commonest chronic disorders encountered in children and adolescents. When it first becomes apparent in children, approximately 20% of them have clinical and biochemical signs of ketoacidosis (DKA). In the presence of unusual clinical symptoms it is necessary to consider the possibility of associated conditions, such as coeliac disease, immunothyroiditis and Addison’s disease. Children with diabetes must be treated by a multidisciplinary team made up of paediatrician, paediatric diabetes specialist, psychologist, social worker, ophthalmologist, dietitian, nurse and diabetes counsellor, making it essential for them to be treated in regional specialised centres. They are treated in their own psychosocial environment and their families are involved in the therapy. Comprehensive, multidisciplinary treatment strategies have now made it possible for these patients to enjoy normal physical wellbeing and near-normal psychosocial development. Prevention and early treatment of of disturbances associated with diabetes remain an important concern. The fact that type 2 diabetes must now be looked for in overweight children and adolescents is a new aspect of diabetes medicine. 相似文献
23.
Lalia Y. Ibrahim Krank P. DiFilippo Geremy E. Steed Manuel D. Cerqueira 《Journal of nuclear cardiology》2006,13(6):855-866
Conclusion Several quality-control measures take place before (patient and camera preparation) and during SPECT acquisition to achieve
high-quality images. Not uncommonly, technologists and physicians are left with suboptimal images that have to be addressed
to reach the “right answer” for patient diagnosis and hence management. In many cases patients may be reimaged, especially
if the problem is detected early, but in other cases either the patient has left the nuclear laboratory or there is an inevitable
problem that, even with reimaging, will not be resolved. In these situations the technologist and physician have to seek the
available techniques to obtain the best images possible. These resources are discussed in this issue as an aid in quality
control to obtain the best possible images. 相似文献
24.
25.
D B Irving J L Cook H B Menz 《Journal of Science and Medicine in Sport》2006,9(1-2):11-22; discussion 23-4
26.
27.
A-C Koschker M Fassnacht S Hahner D Weismann B Allolio 《Experimental and clinical endocrinology & diabetes》2006,114(2):45-51
BACKGROUND: Adrenocortical carcinoma (ACC) is a rare and highly malignant tumour with a poor prognosis. Patients present with signs of steroid hormone excess (e.g., Cushing's syndrome) or symptoms due to an abdominal mass. DIAGNOSIS: In case of an adrenal mass, hormonal workup before surgery is required for differential diagnosis, perioperative management, and for follow-up. The imaging of choice is CT or MRI with MRI being of additional use when invasion of big vessels is suspected. Apart from that, the use of 18-FDG-PET is becoming increasingly established. TREATMENT: Surgical resection is the therapeutic option of choice in stages 1 - 3. In stage 4, the adrenolytic compound mitotane is part of the first-line treatment, but often needs to be combined with cytotoxic chemotherapy. Most patients will eventually have a recurrence, so adjuvant treatment (mitotane/tumour bed radiation) has to be considered in high risk patients, even if randomized controlled trials on adjuvant treatment are still lacking. STRUCTURAL PROGRESS: Several national and European structures have recently been established in order to increase our knowledge of ACC, improve therapeutic options and diagnostic procedures, and promote research. GANIMED, as a Germany-wide network of experts on adrenal diseases, has been founded allowing for improved gathering of data and joint studies. ENSAT (European Network for the Study of Adrenal Tumours) has been brought to life, aiming at European standards for therapy, diagnosis and tumour banking. Since 2003, patients can be enrolled in the German ACC Registry. France and Italy have also developed a central registry to collect nationwide data from patients with ACC. For the first time, patients with metastatic/unresectable ACC can participate in a prospective controlled randomized trial comparing two different cytotoxic chemotherapy regimes (FIRM-ACT). 相似文献
28.
B Dederichs M Dietlein B Jenniches-Kloth M Schmidt P Theissen D Moka H Schicha 《Experimental and clinical endocrinology & diabetes》2006,114(7):366-370
BACKGROUND: Radioiodine therapy (RIT) combined with glucocorticoids is an effective therapy for Graves' disease, but it is debatable whether glucocorticoids should be applied in patients without Graves' ophthalmopathy (GO). METHODS: The effect of 0.4 - 0.5 mg prednisone every second day over a period of 5 weeks after RIT was monitored over a follow-up period of at least 12 months after RIT. A questionnaire was sent to 186 consecutive patients without GO concerning eye symptoms after RIT. 148 patients (80 %) answered. If eye symptoms had occurred after RIT, additional clinical examination was carried out at our outpatient clinic. The primary endpoint was the absence or onset of GO within the first year after RIT. RESULTS: Within 12 months after RIT the examination confirmed GO in 5 out of 148 patients (3.4 %). In all cases the symptoms were transient. No adverse reaction to the use of prednisone after RIT was noted. CONCLUSIONS: The risk of new GO in the first year after RIT was low and the clinical course of GO was mild when RIT was combined with a low-dose glucocorticoid regimen. Preventive administration of glucocorticoids can therefore be recommended in patients with Graves' disease even without evident GO. 相似文献
29.
Votteler T. P. Lipsky K. 《世界核心医学期刊文摘》2006,2(2):31-31
背景/目的:从1978-2000年,有10对联体双胞胎成功接受了手术分离,结果14人存活。其中6对是因为他们的联体同胞死亡或濒临死亡而接受紧急分离手术。剩余的4对,每对至少一个同胞接受至少一次的急诊手术后,才接受联体分离手术。方法:对这一独特的队列进行包含6个项目的问卷调查。问题的设计是开放式的,为父母/家庭提供有关信息的最大机会。对每个家庭就相同的问题也进行了当面的问卷调查。医师询问了与身体健康和疾病相关的一些问题。而社会工作询问了与发育、教育、社会心理和家庭功能相关的问题。结果:前面提及的14人存活的双胞胎中,4人大学毕业,1人于1981年完成中学学业,剩余9人正在上学。14人在最初的手术后,还需要接受再次手术,尤其是需要矫正泌尿系统、畸形、神经外科和小儿外科的问题。结论:通过超声检查对联体双胎进行宫内诊断,可以使医师和胎儿父母在孕早期决定在终止妊娠时是进行双胎分离还是保全其中一个。这些病例报道通过描述14例手术存活的长期体格检查和心理学检查结果,为医师和父母在关键时刻做出决定提供了另外有助的依据。 相似文献
30.
Although psychoanalysis was the first-choice treatment for premature ejaculation (PE) between 1920 and 1960, hardly any reports on its efficacy have been published. Moreover, a scientific debate about its findings has never been fully developed. The recent progress that has been made in the classification of three different PE syndromes creates a new opportunity for psychoanalytic investigations of men with complaints of PE, distinguished by the actual duration of their intravaginal ejaculation latency time (IELT). The term premature-like ejaculatory dysfunction has been introduced to distinguish men with self-perceived PE at normal and long IELT durations from those men with lifelong, acquired and normal variable PE. Psychoanalytic research may contribute to a better understanding of the consequences of objective early ejaculations on the unconscious mental life of men with the four forms of PE. By integrating neurobiological, clinical and epidemiological data of ejaculatory performance, a revival of psychoanalytic research of PE in the four distinct, classified PE groups, will probably contribute to a deeper insight in to the unconscious mental life of men affected by PE. 相似文献