全文获取类型
收费全文 | 25640篇 |
免费 | 1787篇 |
国内免费 | 48篇 |
专业分类
耳鼻咽喉 | 187篇 |
儿科学 | 868篇 |
妇产科学 | 594篇 |
基础医学 | 3399篇 |
口腔科学 | 255篇 |
临床医学 | 3856篇 |
内科学 | 4482篇 |
皮肤病学 | 496篇 |
神经病学 | 2598篇 |
特种医学 | 460篇 |
外科学 | 2642篇 |
综合类 | 211篇 |
一般理论 | 41篇 |
预防医学 | 3412篇 |
眼科学 | 402篇 |
药学 | 1576篇 |
中国医学 | 20篇 |
肿瘤学 | 1976篇 |
出版年
2024年 | 31篇 |
2023年 | 246篇 |
2022年 | 352篇 |
2021年 | 774篇 |
2020年 | 571篇 |
2019年 | 746篇 |
2018年 | 889篇 |
2017年 | 656篇 |
2016年 | 692篇 |
2015年 | 703篇 |
2014年 | 1031篇 |
2013年 | 1485篇 |
2012年 | 2213篇 |
2011年 | 2295篇 |
2010年 | 1212篇 |
2009年 | 1061篇 |
2008年 | 1780篇 |
2007年 | 1879篇 |
2006年 | 1703篇 |
2005年 | 1587篇 |
2004年 | 1438篇 |
2003年 | 1259篇 |
2002年 | 1240篇 |
2001年 | 123篇 |
2000年 | 115篇 |
1999年 | 140篇 |
1998年 | 217篇 |
1997年 | 175篇 |
1996年 | 132篇 |
1995年 | 110篇 |
1994年 | 110篇 |
1993年 | 95篇 |
1992年 | 48篇 |
1991年 | 41篇 |
1990年 | 35篇 |
1989年 | 28篇 |
1988年 | 16篇 |
1987年 | 18篇 |
1986年 | 22篇 |
1985年 | 20篇 |
1984年 | 29篇 |
1983年 | 14篇 |
1982年 | 27篇 |
1981年 | 19篇 |
1980年 | 12篇 |
1979年 | 13篇 |
1977年 | 10篇 |
1976年 | 13篇 |
1975年 | 8篇 |
1974年 | 8篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
Buser Julie M. Boyd Carol J. Moyer Cheryl A. Zulu Davy Ngoma-Hazemba Alice Jones Andrew D. Lori Jody R. 《Maternal and child health journal》2021,25(8):1182-1186
Maternal and Child Health Journal - Low birthweight (LBW) is a significant public health problem in sub-Saharan Africa and LBW in rural Zambia is high. Our study explored the prevalence of LBW for... 相似文献
82.
Mauricio Anne M. Rudo-Stern Jenna Dishion Thomas J. Shaw Daniel S. Gill Anne M. Lundgren Julie S. Thunberg Jenny 《Prevention science》2021,22(1):73-83
Prevention Science - This study is a qualitative analysis of facilitators and barriers in the dissemination of Family Check-Up (FCU), a U.S.-developed preventive intervention in Sweden. The FCU is... 相似文献
83.
84.
85.
Luis I. Ruffolo Marsha Pulhamus Theresa Foito Elizabeth Levatino Heather Martin Julie Michels Jan Schriefer Kori Wolcott Derek Wakeman 《Journal of pediatric surgery》2021,56(1):30-36
PurposePediatric gastrostomy tubes (G-tubes) are associated with considerable utilization of healthcare resources. G-tube dislodgement can result in tract disruption and abdominal sepsis. We aimed to reduce early G-tube dislodgement by 25%.MethodsAn interdisciplinary team convened to identify key drivers of G-tube dislodgement and implement initiatives to reduce this complication. A G-tube care bundle was implemented in 2018. Rates of early G-tube dislodgement (within 90 days of insertion) were tracked. 15 months of cases after bundle implementation were compared to 20 months of cases before implementation. Length of stay (LOS, balancing measure) and bundle compliance (process measure) were tracked.ResultsG-tube dislodgements decreased 47% after bundle implementation. Overall, dislodgements after G-tube insertion decreased from 43% to 19% dislodgements per tube inserted, p = 0.004. Reductions were observed for dislodgements occurring in both the inpatient (14% vs. 1.5%) and outpatient (29% vs. 18%) settings. Median LOS was reduced from 15.3 to 7.1 days following implementation, p = 0.004. Process measures demonstrated 75% or greater compliance one year after implementation.ConclusionAn interdisciplinary team using quality improvement science methodology can significantly reduce G-tube dislodgement and improve value after pediatric gastrostomy tube insertion.Type of studyLongitudinal cohort study.Level of evidenceIII. 相似文献
86.
87.
88.
Julie Safirstein Jonathan J. Grant Emily Clausen Deepika Savant Rebecca Dezube Gina Hong 《Journal of cystic fibrosis》2021,20(3):506-510
Individuals with cystic fibrosis (CF) have an increased risk for gallbladder abnormalities and biliary tract disease, but the reported incidence of these manifestations of CF varies widely in the literature. With the approval of elexacaftor/tezacaftor/ivacaftor (ELX/TEZ/IVA), increasing numbers of CF patients have been initiated on highly effective cystic fibrosis transmembrane regulator (CFTR) modulator therapy. While elevations in hepatic panel are known potential side effects of CFTR modulators, there have been no published cases of biliary disease or acute cholecystitis attributed to these medications. In this case series, we describe seven patients at two adult CF centers with biliary colic shortly after initiation with ELX/TEZ/IVA, six of whom required cholecystectomy. 相似文献
89.
James F. Markmann Michael R. Rickels Thomas L. Eggerman Nancy D. Bridges David E. Lafontant Julie Qidwai Eric Foster William R. Clarke Malek Kamoun Rodolfo Alejandro Melena D. Bellin Kathryn Chaloner Christine W. Czarniecki Julia S. Goldstein Bernhard J. Hering Lawrence G. Hunsicker Dixon B. Kaufman Olle Korsgren Christian P. Larsen Xunrong Luo Ali Naji José Oberholzer Andrew M. Posselt Camillo Ricordi Peter A. Senior A. M. James Shapiro Peter G. Stock Nicole A. Turgeon 《American journal of transplantation》2021,21(4):1477-1492
90.
Patrick S. Powell Karen Pazol Lisa D. Wiggins Julie L. Daniels Gabriel S. Dichter Chyrise B. Bradley Rebecca Pretzel Joy Kloetzer Charmaine McKenzie Alexys Scott Britney Robinson Amy S. Sims Eric P. Kasten M. Daniele Fallin Susan E. Levy Patricia M. Dietz Mary E. Cogswell 《MMWR. Morbidity and mortality weekly report》2021,70(17):605