全文获取类型
收费全文 | 3062篇 |
免费 | 154篇 |
国内免费 | 17篇 |
专业分类
耳鼻咽喉 | 45篇 |
儿科学 | 52篇 |
妇产科学 | 119篇 |
基础医学 | 523篇 |
口腔科学 | 63篇 |
临床医学 | 215篇 |
内科学 | 685篇 |
皮肤病学 | 59篇 |
神经病学 | 473篇 |
特种医学 | 171篇 |
外科学 | 340篇 |
综合类 | 13篇 |
一般理论 | 2篇 |
预防医学 | 130篇 |
眼科学 | 31篇 |
药学 | 191篇 |
中国医学 | 2篇 |
肿瘤学 | 119篇 |
出版年
2023年 | 21篇 |
2022年 | 19篇 |
2021年 | 76篇 |
2020年 | 36篇 |
2019年 | 61篇 |
2018年 | 71篇 |
2017年 | 53篇 |
2016年 | 56篇 |
2015年 | 88篇 |
2014年 | 96篇 |
2013年 | 109篇 |
2012年 | 197篇 |
2011年 | 260篇 |
2010年 | 129篇 |
2009年 | 131篇 |
2008年 | 209篇 |
2007年 | 193篇 |
2006年 | 190篇 |
2005年 | 165篇 |
2004年 | 152篇 |
2003年 | 128篇 |
2002年 | 116篇 |
2001年 | 18篇 |
1999年 | 18篇 |
1997年 | 11篇 |
1995年 | 15篇 |
1994年 | 10篇 |
1991年 | 10篇 |
1990年 | 14篇 |
1948年 | 9篇 |
1933年 | 17篇 |
1932年 | 20篇 |
1931年 | 14篇 |
1930年 | 16篇 |
1929年 | 9篇 |
1928年 | 15篇 |
1927年 | 9篇 |
1923年 | 12篇 |
1922年 | 13篇 |
1921年 | 9篇 |
1911年 | 9篇 |
1909年 | 11篇 |
1908年 | 17篇 |
1907年 | 17篇 |
1906年 | 14篇 |
1905年 | 12篇 |
1904年 | 9篇 |
1903年 | 9篇 |
1902年 | 13篇 |
1880年 | 11篇 |
排序方式: 共有3233条查询结果,搜索用时 15 毫秒
1.
Traboulsi-Garet Bassel Jorba-García Adrià Camps-Font Octavi Alves Fabio Abreu Figueiredo Rui Valmaseda-Castellón Eduard 《Clinical oral investigations》2022,26(3):2371-2382
Clinical Oral Investigations - To determine the usefulness of Serum C-terminal telopeptide cross-link of type 1 collagen (sCTX) as a preoperative marker for predicting the risk of developing... 相似文献
2.
3.
4.
Hielke M. de Vries Hack Jae Lee Wayne Lam Rosa S. Djajadiningrat Sarah R. Ottenhof Eduard Roussel Bin Klaas Kroon Igle Jan de Jong Pedro Oliveira Hussain M. Alnajjar Maarten Albersen Asif Muneer Vijay Sangar Arie Parnham Benjamin Ayres Nick Watkin Simon Horenblas Martijn M. Stuiver Oscar R. Brouwer 《BJU international》2022,130(1):126-132
5.
6.
7.
Ulrich Hegerl Roland Mergl Christian Sander Jens Dietzel Istvan Bitter Koen Demyttenaere Ricardo Gusmão Ana González-Pinto Iñaki Zorrilla Adriana García Alocén Victor Perez Sola Eduard Vieta Georg Juckel Ulrich S. Zimmermann Michael Bauer Pascal Sienaert Sónia Quintão Marc-Andreas Edel Michael Kluge 《European neuropsychopharmacology》2018,28(1):185-194
Based on many clinical and preclinical findings the ‘vigilance regulation model of mania’ postulates that an unstable regulation of wakefulness is a pathogenetic factor in both mania and Attention Deficit Hyperactivity Disorder (ADHD) and induces hyperactivity and sensation seeking as an autoregulatory attempt to stabilize wakefulness. Accordingly, stimulant medications with their vigilance stabilizing properties could have rapid antimanic effects similar to their beneficial effects in ADHD. The MEMAP study – a multi-center, double-blind, placebo-controlled and randomized clinical trial (RCT) – assessed the antimanic efficacy and safety of a 2.5-day treatment with methylphenidate (20–40 mg/day). Of 157 screened patients with acute mania, 42 were randomly assigned to receive 20–40 mg per day of methylphenidate in one or two applications, or placebo. The primary outcome was the change in Young Mania Rating Scale (YMRS) sum scores from baseline to day 2.5 in the methylphenidate group compared to the placebo group. A group sequential design was chosen to justify early RCT termination based on efficacy or futility at an interim analysis after inclusion of 40 patients. In the interim analysis, the change from baseline in the YMRS total score at day 2.5 was not significantly different between both groups (F(1,37)=0.23; p=0.64). Thus, futility was declared for methylphenidate and the RCT was stopped. In summary, although methylphenidate was well tolerated and safe in the full analysis set, it failed to show efficacy in the treatment of acute mania. Trial registration: clinicaltrials.gov (URL: http://www.clinicaltrials.gov; registration number: NCT01541605). 相似文献
8.
Ana González-Pinto Purificación López-Peña Cristina Bermúdez-Ampudia Eduard Vieta Mónica Martinez-Cengotitabengoa 《European neuropsychopharmacology》2018,28(12):1351-1359
To critically examine the effectiveness of lithium in preventing depressive symptoms (mixed and depressive episodes) in real life settings, taking into account adherence to drug treatment and its implications for the clinical costs of the disease. Overall, 72 patients with bipolar disorder initially treated with lithium carbonate were included and followed-up for 10 years. Patients were assessed every 8 weeks for morbidity and alcohol/drug consumption. Patients with good adherence to lithium had fewer episodes with depressive features than poor adherers (B?=?2.405, p?=?0.046) and also fewer manic and hypomanic episodes (B?=?2.572; p?<?0.001), after controlling for confounders. Time to relapse into a depressive or mixed episode and into a manic or hypomanic episode was shorter in patients with poor adherence. The costs of the 1.95?±?2.38 (mean?±?standard deviation) admissions of adherent patients through the 10 years of follow-up were €10,349, while the costs of the 6.25?±?4.92 admissions of non-adherent patients were €44,547. In clinical practice settings, long-term lithium salts seem to have a preventive effect on depressive symptoms. 相似文献
9.