全文获取类型
收费全文 | 14613篇 |
免费 | 819篇 |
国内免费 | 66篇 |
专业分类
耳鼻咽喉 | 109篇 |
儿科学 | 553篇 |
妇产科学 | 382篇 |
基础医学 | 2207篇 |
口腔科学 | 229篇 |
临床医学 | 1648篇 |
内科学 | 3070篇 |
皮肤病学 | 312篇 |
神经病学 | 1496篇 |
特种医学 | 375篇 |
外科学 | 1394篇 |
综合类 | 88篇 |
一般理论 | 10篇 |
预防医学 | 1179篇 |
眼科学 | 234篇 |
药学 | 1045篇 |
中国医学 | 54篇 |
肿瘤学 | 1113篇 |
出版年
2023年 | 97篇 |
2022年 | 199篇 |
2021年 | 397篇 |
2020年 | 256篇 |
2019年 | 352篇 |
2018年 | 405篇 |
2017年 | 281篇 |
2016年 | 318篇 |
2015年 | 420篇 |
2014年 | 548篇 |
2013年 | 798篇 |
2012年 | 1134篇 |
2011年 | 1167篇 |
2010年 | 616篇 |
2009年 | 573篇 |
2008年 | 955篇 |
2007年 | 1016篇 |
2006年 | 948篇 |
2005年 | 900篇 |
2004年 | 794篇 |
2003年 | 807篇 |
2002年 | 731篇 |
2001年 | 121篇 |
2000年 | 98篇 |
1999年 | 136篇 |
1998年 | 154篇 |
1997年 | 131篇 |
1996年 | 88篇 |
1995年 | 86篇 |
1994年 | 81篇 |
1993年 | 65篇 |
1992年 | 67篇 |
1991年 | 51篇 |
1990年 | 42篇 |
1989年 | 37篇 |
1988年 | 47篇 |
1987年 | 38篇 |
1986年 | 38篇 |
1985年 | 34篇 |
1984年 | 42篇 |
1983年 | 51篇 |
1982年 | 50篇 |
1981年 | 49篇 |
1980年 | 37篇 |
1979年 | 31篇 |
1978年 | 24篇 |
1977年 | 16篇 |
1976年 | 14篇 |
1975年 | 19篇 |
1972年 | 11篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Lara Silveira Abdo Aguiar Rita de Cssia Rossini Lismary Aparecida de Forville Mesquita Gerson Dellatorre 《Journal of Cosmetic Dermatology》2019,18(6):1733-1736
Depigmented lesions may occur as postinflammatory sequelae of subacute cutaneous lupus erythematosus (SCLE), leading to great psychosocial impact. A 53‐year‐old male patient presented with post‐SCLE depigmented facial lesions after five years of disease stability. We proposed surgical treatment with melanocyte‐keratinocyte transplantation procedure (MKTP), and after five months the patient achieved 90% repigmentation, without Koebner phenomenon (KP). In theory, KP is a possible complication of MKTP procedure since the preparation of the receptor area involves the use of dermabrasion. In an attempt to avoid it, we suggest to maintain the treatment of the underlying disease and wait for a minimum period of disease stability before the procedure. 相似文献
3.
BackgroundEpidemiological studies on peptic ulcer disease (PUD) have shown a recent decrease in hospital admissions in Western countries.ObjectiveThis paper aimed to study the current status and risk factors of PUD in a Nigerian metropolis.MethodsA cross-sectional study of symptomatic patients at upper gastrointestinal (GI) endoscopy diagnosed with PUD from February 2014 to September 2019 at a referral endoscopy facility in Port Harcourt, Niger delta region of Nigeria. The variables studied included demographics, symptoms and duration, blood group, chronic non-steroidal anti-inflammatory (NSAID) use, smoking, endoscopic and histology findings. Statistical analysis was performed using SPSS version 20.ResultsA total of 434 upper GI endoscopies were performed during the study period with thirty-one diagnosis of PUD made. The mean age of gastric ulcer (GU) and duodenal ulcer (DU) cases were 54.4 ± 20.2yrs and 48.1 ± 14.5yrs respectively (p = 0.367). GU to DU ratio was 1.4:1. H. pylori infection, chronic NSAID use and blood group O were seen in 7(22.5%), 8(25.8%) and 18(72.0%) respectively. Major indication in 21(67.7%) cases was gastrointestinal bleeding.ConclusionThere is a low diagnostic rate of PUD (6.7%) with pre-pyloric antral gastric ulcers as most common type and multifactorial aetiology. 相似文献
4.
Angela Mauro Salvatore Mauro Roberto Rega Luigi Martemucci Rita Sottile 《Pediatric dermatology》2019,36(1):e34-e36
Henoch‐Schonlein purpura (HSP) is the most common systemic vasculitis in childhood. There is no consensus about the management for isolated cutaneous manifestations in HSP. We describe a case of HSP presenting with severe skin lesions that did not respond to standard therapy with corticosteroids. The 11‐year‐old child was treated with intravenous immunoglobulins, which induced rapid and persistent resolution of symptomatology. 相似文献
5.
Alessia Scarselli Silvia Di Cesare Claudia Capponi Simona Cascioli Maria L. Romiti Gigliola Di Matteo Alessandra Simonetti Paolo Palma Andrea Finocchi Barbarella Lucarelli Rita M. Pinto Ippolita Rana Giuseppe Palumbo Maurizio Caniglia Paolo Rossi Rita Carsetti Caterina Cancrini Alessandro Aiuti 《Journal of clinical immunology》2015,35(4):373-383
6.
7.
Evaluation of training nurses to perform semi‐automated three‐dimensional left ventricular ejection fraction using a customised workstation‐based training protocol
下载免费PDF全文
![点击此处可从《Journal of clinical nursing》网站下载免费的PDF全文](/ch/ext_images/free.gif)
8.
9.
10.