全文获取类型
收费全文 | 632篇 |
免费 | 66篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 39篇 |
妇产科学 | 10篇 |
基础医学 | 52篇 |
口腔科学 | 21篇 |
临床医学 | 120篇 |
内科学 | 151篇 |
皮肤病学 | 40篇 |
神经病学 | 15篇 |
特种医学 | 101篇 |
外科学 | 65篇 |
综合类 | 12篇 |
预防医学 | 22篇 |
眼科学 | 3篇 |
药学 | 11篇 |
肿瘤学 | 44篇 |
出版年
2023年 | 8篇 |
2021年 | 6篇 |
2020年 | 5篇 |
2019年 | 8篇 |
2018年 | 15篇 |
2017年 | 15篇 |
2016年 | 24篇 |
2015年 | 18篇 |
2014年 | 31篇 |
2013年 | 29篇 |
2012年 | 13篇 |
2011年 | 17篇 |
2010年 | 30篇 |
2009年 | 50篇 |
2008年 | 15篇 |
2007年 | 13篇 |
2006年 | 21篇 |
2005年 | 17篇 |
2004年 | 14篇 |
2003年 | 12篇 |
2002年 | 7篇 |
2001年 | 7篇 |
2000年 | 3篇 |
1999年 | 11篇 |
1998年 | 33篇 |
1997年 | 34篇 |
1996年 | 36篇 |
1995年 | 26篇 |
1994年 | 24篇 |
1993年 | 29篇 |
1992年 | 6篇 |
1991年 | 6篇 |
1990年 | 7篇 |
1989年 | 15篇 |
1988年 | 12篇 |
1987年 | 19篇 |
1986年 | 11篇 |
1985年 | 8篇 |
1984年 | 7篇 |
1983年 | 5篇 |
1982年 | 3篇 |
1981年 | 9篇 |
1980年 | 5篇 |
1978年 | 3篇 |
1977年 | 3篇 |
1976年 | 5篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1965年 | 1篇 |
1963年 | 2篇 |
排序方式: 共有707条查询结果,搜索用时 15 毫秒
81.
82.
ObjectiveExtracts of Ganoderma species have been widely used as herbal medicines in the treatment of several infections. This study was carried out to ascertain the haematological properties of aqueous Ganoderma applanatum (G. applanatum).MethodsSixty albino rats grouped into six equal groups (10 each) of A to F consisting of tests and controls. Laboratory albino rats in groups A, B and C were infected with Trypanosoma brucei brucei (T. brucei brucei) while groups A and B (test) were treated with aqueous G. applanatum extract; other groups served as control. Microscopy and haematological profiles from the albino rats were monitored on daily basis for blood parasites, packed cell volume (PCV), haemoglobin concentration (HC), total red blood cell count (RBC), mean cell haemoglobin (MCH), mean cell volume (MCV), mean cell haemoglobin concentration (MCHC), and total white blood cell count (WBC).ResultsAlbino rats in groups A, B and C infected with T. brucei brucei and treated with various concentrations of aqueous G. applanatum showed a progressive reduction in PCV, HC, RBC, MCH and MCHC compared to the controls (P<0.05). All the infected rats died by day 14 of the experiment from parasitaemia.ConclusionsG. applanatum lacks ability to boost haematological profiles of anaemic laboratory rats and also of no use in the treatment of African trypanosomiasis. Higher doses of the fungal extract may be required to test on laboratory rats with less lethal biological stimulants of anaemia before proving or otherwise its true haematological properties. 相似文献
83.
84.
Antonio C Marttos Fernanda M Kuchkarian Phillipe Abreu-Reis Bruno MT Pereira Francisco S Collet-Silva Gustavo P Fraga 《World journal of emergency surgery : WJES》2012,7(Z1):S4
Advances in information and communication technologies are changing the delivery of trauma care and education. Telemedicine is a tool that can be used to deliver expert trauma care and education anywhere in the world. Trauma is a rapidly-evolving field requiring access to readily available sources of information. Through videoconferencing, physicians can participate in continuing education activities such as Grand Rounds, seminars, conferences and journal clubs. Exemplary programs have shown promising outcomes of teleconferences such as enhanced learning, professional collaborations, and networking. This review introduces the concept of telemedicine for trauma education, and highlights efforts of programs that are utilizing telemedicine to unite institutions across the world. 相似文献
85.
86.
87.
Chondromalacia patellae: assessment with MR imaging 总被引:10,自引:0,他引:10
Yulish BS; Montanez J; Goodfellow DB; Bryan PJ; Mulopulos GP; Modic MT 《Radiology》1987,164(3):763-766
Magnetic resonance (MR) images of the posterior patellar hyaline articular cartilage were obtained in 23 subjects to determine if MR imaging could accurately demonstrate the patellar cartilage. Arthroscopy was used as the standard of reference. Three subjects were asymptomatic volunteers. In the remaining 20 who had patellofemoral pain, arthroscopy was performed before MR imaging in seven and afterward in 12; one did not undergo arthroscopy. MR imaging showed focal areas of swelling of the patellar cartilage, focal hypointensity, surface irregularity, areas of thinning, and areas of cartilage loss with exposure of subchondral bone. The surgical findings agreed with those from MR images in all seven patients who underwent arthroscopy before MR imaging and in ten of the 12 who underwent surgery afterward. MR imaging is an accurate means of examining the posterior patellar cartilage and should be considered as an alternative to diagnostic arthroscopy when chondromalacia patellae is suspected. 相似文献
88.
89.
90.
Bangert BA; Modic MT; Ross JS; Obuchowski NA; Perl J; Ruggieri PM; Masaryk TJ 《Radiology》1995,195(2):437