全文获取类型
收费全文 | 188872篇 |
免费 | 11808篇 |
国内免费 | 1228篇 |
专业分类
耳鼻咽喉 | 2046篇 |
儿科学 | 6058篇 |
妇产科学 | 4573篇 |
基础医学 | 26399篇 |
口腔科学 | 5888篇 |
临床医学 | 16303篇 |
内科学 | 41239篇 |
皮肤病学 | 4521篇 |
神经病学 | 18210篇 |
特种医学 | 5852篇 |
外国民族医学 | 24篇 |
外科学 | 21810篇 |
综合类 | 2010篇 |
一般理论 | 95篇 |
预防医学 | 15034篇 |
眼科学 | 3091篇 |
药学 | 14523篇 |
3篇 | |
中国医学 | 890篇 |
肿瘤学 | 13339篇 |
出版年
2023年 | 1244篇 |
2022年 | 1122篇 |
2021年 | 4186篇 |
2020年 | 3213篇 |
2019年 | 4406篇 |
2018年 | 5192篇 |
2017年 | 3982篇 |
2016年 | 4379篇 |
2015年 | 5008篇 |
2014年 | 6635篇 |
2013年 | 9079篇 |
2012年 | 13137篇 |
2011年 | 13689篇 |
2010年 | 7978篇 |
2009年 | 6797篇 |
2008年 | 11294篇 |
2007年 | 11462篇 |
2006年 | 10690篇 |
2005年 | 10065篇 |
2004年 | 9748篇 |
2003年 | 9032篇 |
2002年 | 8586篇 |
2001年 | 4142篇 |
2000年 | 3911篇 |
1999年 | 3338篇 |
1998年 | 1552篇 |
1997年 | 1248篇 |
1996年 | 1086篇 |
1995年 | 1178篇 |
1994年 | 1069篇 |
1993年 | 983篇 |
1992年 | 2011篇 |
1991年 | 1923篇 |
1990年 | 1649篇 |
1989年 | 1595篇 |
1988年 | 1466篇 |
1987年 | 1300篇 |
1986年 | 1299篇 |
1985年 | 1130篇 |
1984年 | 875篇 |
1983年 | 807篇 |
1982年 | 587篇 |
1981年 | 483篇 |
1980年 | 461篇 |
1979年 | 631篇 |
1978年 | 480篇 |
1975年 | 470篇 |
1974年 | 526篇 |
1973年 | 485篇 |
1972年 | 446篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Malou A.H. Nuijten Thijs M.H. Eijsvogels Valerie M. Monpellier Ignace M.C. Janssen Eric J. Hazebroek Maria T.E. Hopman 《Obesity reviews》2022,23(1):e13370
Postbariatric loss of muscle tissue could negatively affect long-term health due to its role in various bodily processes, such as metabolism and functional capacity. This meta-analysis aimed to unravel time-dependent changes in the magnitude and progress of lean body mass (LBM), fat-free mass (FFM), and skeletal muscle mass (SMM) loss following bariatric surgery. A systematic literature search was conducted in Pubmed, Embase, and Web of Science. Fifty-nine studies assessed LBM (n = 37), FFM (n = 20), or SMM (n = 3) preoperatively and ≥1 time points postsurgery. Random-effects meta-analyses were performed to determine pooled loss per outcome parameter and follow-up time point. At 12-month postsurgery, pooled LBM loss was ?8.13 kg [95%CI ?9.01; ?7.26]. FFM loss and SMM loss were ?8.23 kg [95%CI ?10.74; ?5.73] and ?3.18 kg [95%CI ?5.64; ?0.71], respectively. About 55% of 12-month LBM loss occurred within 3-month postsurgery, followed by a more gradual decrease up to 12 months. Similar patterns were seen for FFM and SMM. In conclusion, >8 kg of LBM and FFM loss was observed within 1-year postsurgery. LBM, FFM, and SMM were predominantly lost within 3-month postsurgery, highlighting that interventions to mitigate such losses should be implemented perioperatively. 相似文献
2.
3.
Ruscitti Piero Di Cola Ilenia Berardicurti Onorina Conforti Alessandro Iacono Daniela Pantano Ilenia Rozza Gelsomina Rossi Silvia De Stefano Ludovico Balduzzi Silvia Vitale Antonio Caso Francesco Costa Luisa Prete Marcella Navarini Luca Atzeni Fabiola Guggino Giuliana Perosa Federico Cantarini Luca Frediani Bruno Montecucco Carlomaurizio Ciccia Francesco Giacomelli Roberto Cipriani Paola 《Clinical rheumatology》2022,41(11):3597-3597
Clinical Rheumatology - 相似文献
4.
Rizzo Giuseppe Pietrolucci Maria Elena Capponi Alessandra Mappa Ilenia 《The international journal of cardiovascular imaging》2022,38(5):1017-1019
The International Journal of Cardiovascular Imaging - 相似文献
5.
Olivari Davide De Giorgio Daria Staszewsky Lidia Irene Fumagalli Francesca Boccardo Antonio Novelli Deborah Manfredi Martina Babini Giovanni Luciani Anita Ruggeri Laura Magliocca Aurora Zani Davide Danilo Masson Serge Belloli Angelo Pravettoni Davide Maiocchi Giuseppe Latini Roberto Ristagno Giuseppe 《Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy》2022,36(4):727-738
Cardiovascular Drugs and Therapy - Available animal models of acute heart failure (AHF) and their limitations are discussed herein. A novel and preclinically relevant porcine model of decompensated... 相似文献
6.
Lesmana Cosmas Rinaldi Adithya Paramitha Maria Satya Gani Rino A. Lesmana Laurentius A. 《Journal of Medical Ultrasonics》2022,49(3):359-370
Journal of Medical Ultrasonics - Chronic liver disease is still a major problem because disease progression will ultimately lead to liver cirrhosis. Portal hypertension is the hallmark in advanced... 相似文献
7.
8.
Davide Fiore Bavaro Flavia Balena Luigi Ronga Fabio Signorile Federica Romanelli Stefania Stolfa Eleonora Sparapano Carmela De Carlo Adriana Mosca Laura Monno Gioacchino Angarano Annalisa Saracino 《Journal de Mycologie Médicale》2022,32(1):101206
An increased number of patients is at risk of Candida spp. bloodstream infection (CBSI) in modern medicine. Moreover, the rising of antifungal resistance (AR) was recently reported. All consecutive CBSI occurred in our Hospital (consisting of 1,370 beds) between 2015 and 2018, were reviewed. For each case, Candida species, AR pattern, ward involved and demographic data of patients were recorded. Overall, 304 episodes of CBSI occurred, with a median (q1:first-,q3:third quartile) of 77 (71-82) CBSI/year. Over the years, a significant increase of CBSI due to C. albicans compared to non-albicans strains was recorded in medical wards (from 65% to 71%, p=0.030), while this ratio remained stable in others. An increase of resistant strains to multiple antifungals such as C. guillermondii was noticed in recent years (from 0% to 9.8%, p=0.008). Additionally, from 2015 to 2018 an increase in fluconazole-resistance was recorded in our Hospital (from 7.4% to 17.4%, p=0.025) and a slight increase in voriconazole-resistance (from 0% to 7% in 2018, p=0.161) was observed, while resistance to echinocandin and amphotericin B remained firmly below 2%.This study suggests a rapid spread of antifungal resistance in our Hospital; therefore, an appropriate antifungal stewardship programs is urgently warranted. 相似文献
9.
Anne-Sophie Worm Fenger Markus Harboe Olsen Maria Louise Fabritius Christian Gunge Riberholt Kirsten Møller 《Acta anaesthesiologica Scandinavica》2023,67(2):240-247