全文获取类型
收费全文 | 8249篇 |
免费 | 575篇 |
国内免费 | 40篇 |
专业分类
耳鼻咽喉 | 98篇 |
儿科学 | 157篇 |
妇产科学 | 209篇 |
基础医学 | 1079篇 |
口腔科学 | 86篇 |
临床医学 | 907篇 |
内科学 | 1903篇 |
皮肤病学 | 91篇 |
神经病学 | 680篇 |
特种医学 | 407篇 |
外国民族医学 | 26篇 |
外科学 | 1290篇 |
综合类 | 67篇 |
一般理论 | 1篇 |
预防医学 | 458篇 |
眼科学 | 153篇 |
药学 | 522篇 |
中国医学 | 6篇 |
肿瘤学 | 724篇 |
出版年
2023年 | 65篇 |
2022年 | 121篇 |
2021年 | 271篇 |
2020年 | 180篇 |
2019年 | 265篇 |
2018年 | 324篇 |
2017年 | 216篇 |
2016年 | 222篇 |
2015年 | 204篇 |
2014年 | 323篇 |
2013年 | 416篇 |
2012年 | 614篇 |
2011年 | 522篇 |
2010年 | 331篇 |
2009年 | 307篇 |
2008年 | 470篇 |
2007年 | 474篇 |
2006年 | 454篇 |
2005年 | 430篇 |
2004年 | 377篇 |
2003年 | 340篇 |
2002年 | 333篇 |
2001年 | 140篇 |
2000年 | 131篇 |
1999年 | 118篇 |
1998年 | 81篇 |
1997年 | 65篇 |
1996年 | 64篇 |
1995年 | 59篇 |
1994年 | 42篇 |
1993年 | 34篇 |
1992年 | 80篇 |
1991年 | 69篇 |
1990年 | 60篇 |
1989年 | 75篇 |
1988年 | 43篇 |
1987年 | 61篇 |
1986年 | 65篇 |
1985年 | 39篇 |
1984年 | 30篇 |
1983年 | 24篇 |
1982年 | 15篇 |
1981年 | 19篇 |
1979年 | 18篇 |
1975年 | 17篇 |
1974年 | 25篇 |
1973年 | 19篇 |
1972年 | 26篇 |
1970年 | 21篇 |
1969年 | 22篇 |
排序方式: 共有8864条查询结果,搜索用时 15 毫秒
1.
2.
Cromb Amandine Le Loarer Franois Sitbon Maxime Italiano Antoine Stoeckle Eberhard Buy Xavier Kind Michle 《European radiology》2020,30(5):2413-2424
European Radiology - The strongest adverse prognostic factor in myxoid/round cell liposarcomas (MRC-LPS) is the presence of a round cell component above 5% within the tumor bulk. Its identification... 相似文献
3.
ABSTRACTScreening rates for trauma are low in health care settings. We examined the association between health care providers’ (HCPs) experience of physical or sexual trauma and their screening of female patients for trauma. HCPs at an urban academic medical institution were surveyed from September through November 2016. The Brief Trauma (BTQ) and Sexual and Physical Abuse History Questionnaires (SPAHQ) assessed their own experiences of trauma. The Screening Practices Questionnaire (SPQ) assessed HCPs trauma screening. Multiple regression analyses were performed. Among 212 respondents aged 22–67 years, most were female (78.3%) and white (76.1%). Nurses (41.0%) were the largest occupational group. Overall, 85.8% reported having experienced trauma. No significant difference was observed in median SPQ scores between HCPs who had experienced trauma (3.88 [Interquartile Range (IQR) 3.44–4.31]) and those who had not (4.00 [IQR 3.47–4.33], p = .645). In an adjusted model, screening policy awareness and having an obstetrics & gynecology or psychiatry specialty were associated with higher SPQ scores (p < .001). The prevalence of trauma experience in this sample was high, but not associated with screening. Screening policy awareness and practice specialty were associated with screening. HCP factors associated with greater trauma screening should be explored. 相似文献
4.
Renaud Snanoudj Nassim Kamar Elisabeth Cassuto Sophie Caillard Marie Metzger Pierre Merville Antoine Thierry Isabelle Jollet Philippe Grimbert Dany Anglicheau Marc Hazzan Gabriel Choukroun Bruno Hurault De Ligny Bénedicte Janbon Vincent Vuiblet Anne Devys Yann Le Meur Michel Delahousse Jean-Luc Taupin 《Kidney international》2019,95(6):1471-1485
5.
David M Dohan Joseph Choukroun Antoine Diss Steve L Dohan Anthony J J Dohan Jaafar Mouhyi Bruno Gogly 《Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics》2006,101(3):e37-e44
Platelet-rich fibrin (PRF) belongs to a new generation of platelet concentrates geared to simplified preparation without biochemical blood handling. In this initial article, we describe the conceptual and technical evolution from fibrin glues to platelet concentrates. This retrospective analysis is necessary for the understanding of fibrin technologies and the evaluation of the biochemical properties of 3 generations of surgical additives, respectively fibrin adhesives, concentrated platelet-rich plasma (cPRP) and PRF. Indeed, the 3-dimensional fibrin architecture is deeply dependent on artificial clinical polymerization processes, such as massive bovine thrombin addition. Currently, the slow polymerization during PRF preparation seems to generate a fibrin network very similar to the natural one. Such a network leads to a more efficient cell migration and proliferation and thus cicatrization. 相似文献
6.
Immigrants, and especially those recently arrived in host countries, are a high-risk group for tuberculosis. In 2006 in France, nearly half of the new cases of tuberculosis were reported in this group. The incidence rate among people born abroad was about seven times higher than that observed in people born in France (38.9/105 vs 5.2/105). The incidence was also the highest in districts with a high proportion of socioeconomically vulnerable population, such as Paris and greater Paris area. The characteristics of French born and non-French born cases differed. Patients born abroad were less likely to have pulmonary tuberculosis (68.2% vs 78.2; p < 0.001) and were more likely to live in institutions (such as migrant shelters) and to harbor multiresistant tuberculosis strains. A national tuberculosis control program was launched in France in 2007, to decrease the prevalence of tuberculosis in targeted populations. 相似文献
7.
8.
Y. Le Meur M. Büchler A. Thierry S. Caillard F. Villemain S. Lavaud I. Etienne P.-F. Westeel B. H. de Ligny L. Rostaing E. Thervet J. C. Szelag J.-P. Rérolle A. Rousseau G. Touchard P. Marquet 《American journal of transplantation》2007,7(11):2496-2503
Efficacy and safety of mycophenolate mofetil (MMF) may be optimized with individualized doses based on therapeutic monitoring of its active metabolite, mycophenolic acid (MPA). In this 12-month study, 137 renal allograft recipients from 11 French centers receiving basiliximab, cyclosporine A, MMF and corticosteroids were randomized to receive either concentration-controlled doses or fixed-dose MMF. A novel Bayesian estimator of MPA AUC based on three-point sampling was used to individualize doses on posttransplant days 7 and 14 and months 1, 3 and 6. The primary endpoint was treatment failure (death, graft loss, acute rejection and MMF discontinuation). Data from 65 patients/group were analyzed. At month 12, the concentration-controlled group had fewer treatment failures (p = 0.03) and acute rejection episodes (p = 0.01) with no differences in adverse event frequency. The MMF dose was higher in the concentration-controlled group at day 14 (p < 0.0001), month 1 (p < 0.0001) and month 3 (p < 0.01), as were median AUCs on day 14 (33.7 vs. 27.1 mg*h/L; p = 0.0001) and at month 1 (45.0 vs. 30.9 mg*h/L; p < 0.0001). Therapeutic MPA monitoring using a limited sampling strategy can reduce the risk of treatment failure and acute rejection in renal allograft recipients 12 months posttransplant with no increase in adverse events. 相似文献
9.
E Miller A Nicoll S A Rousseau P J Sequeira M H Hambling R W Smithells H Holzel 《British medical journal (Clinical research ed.)》1987,294(6574):737-739
The incidence of congenital rubella was found to be 2.3 times higher in Asian than non-Asian births in England and Wales. This was attributed in part to higher susceptibility to rubella in Asian than non-Asian women, as shown by antenatal serological data from public health laboratories in Leeds, Luton, and Manchester. Examination of the ethnic origin of pregnant women requesting laboratory testing after contact with rubella or rash and of women with laboratory confirmed rubella in pregnancy also suggested that the disease was being underdiagnosed in pregnant Asian women. Failure to prevent congenital rubella by termination of infected pregnancies may therefore contribute to the increased incidence of the syndrome in Asians. Health education programmes about the dangers of rubella in pregnancy and of the need for vaccination can readily be promoted in the Asian community through existing ethnic organisations. Protection of other ethnic minorities likely to be at similar increased risk may require a vaccination programme aimed at national elimination of rubella. 相似文献
10.