全文获取类型
收费全文 | 495篇 |
免费 | 42篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 47篇 |
妇产科学 | 13篇 |
基础医学 | 61篇 |
口腔科学 | 11篇 |
临床医学 | 48篇 |
内科学 | 113篇 |
皮肤病学 | 28篇 |
神经病学 | 17篇 |
特种医学 | 83篇 |
外科学 | 36篇 |
综合类 | 21篇 |
预防医学 | 12篇 |
眼科学 | 7篇 |
药学 | 21篇 |
中国医学 | 1篇 |
肿瘤学 | 16篇 |
出版年
2022年 | 3篇 |
2021年 | 4篇 |
2019年 | 2篇 |
2018年 | 1篇 |
2017年 | 6篇 |
2016年 | 5篇 |
2015年 | 8篇 |
2014年 | 13篇 |
2013年 | 25篇 |
2012年 | 5篇 |
2011年 | 9篇 |
2010年 | 24篇 |
2009年 | 28篇 |
2008年 | 16篇 |
2007年 | 14篇 |
2006年 | 16篇 |
2005年 | 14篇 |
2004年 | 7篇 |
2003年 | 13篇 |
2002年 | 11篇 |
2001年 | 4篇 |
1999年 | 6篇 |
1998年 | 20篇 |
1997年 | 42篇 |
1996年 | 30篇 |
1995年 | 20篇 |
1994年 | 23篇 |
1993年 | 21篇 |
1992年 | 9篇 |
1991年 | 4篇 |
1990年 | 9篇 |
1989年 | 26篇 |
1988年 | 13篇 |
1987年 | 11篇 |
1986年 | 13篇 |
1985年 | 14篇 |
1984年 | 6篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1981年 | 4篇 |
1980年 | 6篇 |
1979年 | 2篇 |
1978年 | 4篇 |
1977年 | 9篇 |
1976年 | 4篇 |
1975年 | 4篇 |
1963年 | 1篇 |
1956年 | 1篇 |
1955年 | 1篇 |
1932年 | 1篇 |
排序方式: 共有537条查询结果,搜索用时 31 毫秒
91.
Background
Substantial regional health inequalities have been shown to exist in Turkey for major health indicators. Turkish data on hospitals deserves a closer examination with a special emphasis on the regional differences in the context of the rapid privatization of the secondary or tertiary level health services. 相似文献92.
93.
Melanoma/skin cancer screening in a Mediterranean country: results of the Euromelanoma Screening Day Campaign in Greece 总被引:2,自引:0,他引:2
A Stratigos† V Nikolaou† S Kedicoglou† C Antoniou† I Stefanaki† G Haidemenos‡ AD Katsambas† 《Journal of the European Academy of Dermatology and Venereology》2007,21(1):56-62
Background Since the year 2000 a melanoma/skin cancer screening campaign has been organized annually in Greece in the context of the Euromelanoma Screening Day Campaign. Objectives We aimed to analyse the characteristics of the screened population, to recognize relevant risk factors and to identify the cases of histologically confirmed malignant melanoma (MM) in individuals with suspicious skin lesions. Methods An analysis of the completed screening forms from the years 2000–2004 was performed with respect to relevant demographic, epidemiological and clinical data. Results A total of 9723 individuals were screened, most of whom where below the age of 50 years (71%), female (59%), and of skin phototype II and III (76%). Sunburn during childhood was reported in 47% of participants, while 5% of the screened population had a personal or family history of melanoma. On clinical examination, 14.4% had actinic keratoses, 31.2% had dysplastic nevi, while 6.4% carried a presumptive diagnosis of non‐melanoma skin cancer. In the 2003–2004 screening campaign, 19 out of the 171 clinically suspicious lesions were histologically proven to be MM, the majority of which (58%) were ‘thin’ melanomas (Breslow's thickness of ≤ 1 mm) of the superficial spreading type. Conclusions Our study suggested that, a melanoma/skin cancer screening programme in a Mediterranean country, supported by an intense publicity campaign, attracted many individuals at risk for skin cancer and detected mostly thin melanomas of the superficial spreading type. 相似文献
94.
Christina Lancioni MD A. Desiree LaBeaud MD Frank Esper MD Nazha Abughali MD Jeffery Auletta MD 《Pediatric blood & cancer》2009,53(7):1318-1320
Children who undergo treatment for malignancies are at high for infection with both typical and opportunistic pathogens. Fever in these children prompts extensive evaluation and empiric treatment with broad‐spectrum antimicrobials. In the United States (US), tuberculosis is an infrequently reported cause of fever in the pediatric cancer patient and has not been well described. In this report we describe a case of primary pulmonary tuberculosis (TB) in a boy with precursor B‐cell acute lymphoblastic leukemia (ALL) and review the pertinent literature. Pediatr Blood Cancer 2009; 53:1318–1320. © 2009 Wiley‐Liss, Inc. 相似文献
95.
96.
NUNO DIAS FERREIRA M.D. DANIEL CAEIRO M.D. LUÍS ADÃO M.D. MARCO OLIVEIRA M.D. HELENA GONÇALVES M.D. JOSÉ RIBEIRO M.D. MADALENA TEIXEIRA M.D. ANÍBAL ALBUQUERQUE M.D. JOÃO PRIMO M.D. PEDRO BRAGA M.D. LINO SIMÕES M.D. VASCO GAMA RIBEIRO M.D. 《Pacing and clinical electrophysiology : PACE》2010,33(11):1364-1372
Background: Previous reports have suggested the occurrence of cardiac conduction disorders and permanent pacemaker (PPM) requirement after transcatheter aortic valve implantation (TAVI). Based on a single‐center experience, we aim to assess the incidence of postprocedural conduction disorders, need for PPM, and its determinants after TAVI with a self‐expanding bioprosthesis. Methods: From August 2007 to October 2009, 32 consecutive patients underwent TAVI with the Medtronic CoreValve (MCV) System (Medtronic Inc., Minneapolis, MN, USA). Three patients paced at baseline and two cases of procedure‐related mortality were excluded. We analyzed the 12‐lead electrocardiogram at baseline, immediately after procedure and at discharge. Requirements for PPM were documented and potential clinical, electrophysiological, echocardiographic, and procedural predictors of PPM requirement were studied. Results: After TAVI, eight patients (29.6%) required PPM implantation due to high‐grade atrioventricular (AV) block. The prevalence of left bundle branch block increased from 13.8% to 57.7% directly after implantation (P = 0.001). Need for PPM was correlated to the depth of prosthesis implantation (r = 0.590; P = 0.001). At a cutoff point of 10.1 mm, the likelihood of pacemaker could be predicted with 87.5% sensitivity and 74% specificity and a receiver operator characteristic curve area of 0.86 ± 0.07 (P = 0.003). Of the seven patients with preexisting right bundle branch block (RBBB), four (57.1%) required PPM implantation after TAVI. Conclusions: High‐grade AV block requiring PPM implantation is a common complication following TAVI and could be predicted by a deeper implantation of the prosthesis. Patients with preexisting RBBB also seem to be at risk for the development of high‐grade AV block and subsequent pacemaker implantation. (PACE 2010; 1364–1372) 相似文献
97.
Aaron E Boyce Gillian Marshman Richard AD Mills 《The Australasian journal of dermatology》2009,50(3):190-193
Erosive mucosal lichen planus (LP) is a well-established variant of LP characterized by the formation of ulcerative lesions predominantly involving the oral and genital mucosae. Less commonly, this condition may involve oesophageal and/or ocular mucosal surfaces, and case reports within the ophthalmology literature have recently confirmed the potential for this condition to affect the nasolacrimal ducts. We report the case of a woman with severe cicatrizing mucosal LP and ocular symptoms secondary to presumed nasolacrimal duct involvement. We also report the potential for this newly appreciated manifestation of LP to respond to systemic cyclosporin A. 相似文献
98.
99.
100.
采用RITQ综合评定婴儿气质的报告 总被引:2,自引:0,他引:2
张琪 《中国心理卫生杂志》1997,11(3):155-157
采用Carey的RITQ为4-8个月婴儿气质的测查工具,结合专人问卷与观察,对400名婴儿的气质进行了综合评定,结果表明:九个气质因子的重测信度为0.77-0.90,多数气质因子间存在着显著的相关,相关系数为0.10-0.59。大、小婴儿活动水平、接近-退缩、适应及反应强度四个气质因子存在差异。气质类型与国外同龄婴儿及国内学前儿童的分布相接近。提示采用RITQ综合评定婴儿气质的信度和效度较好,可用于我国婴儿的气质测查及研究。 相似文献