全文获取类型
收费全文 | 33191篇 |
免费 | 5065篇 |
国内免费 | 173篇 |
专业分类
耳鼻咽喉 | 721篇 |
儿科学 | 1148篇 |
妇产科学 | 962篇 |
基础医学 | 3652篇 |
口腔科学 | 793篇 |
临床医学 | 5754篇 |
内科学 | 6394篇 |
皮肤病学 | 570篇 |
神经病学 | 2448篇 |
特种医学 | 1062篇 |
外科学 | 4447篇 |
综合类 | 902篇 |
现状与发展 | 2篇 |
一般理论 | 27篇 |
预防医学 | 4496篇 |
眼科学 | 631篇 |
药学 | 1936篇 |
1篇 | |
中国医学 | 193篇 |
肿瘤学 | 2290篇 |
出版年
2023年 | 630篇 |
2022年 | 473篇 |
2021年 | 1017篇 |
2020年 | 897篇 |
2019年 | 711篇 |
2018年 | 1153篇 |
2017年 | 1030篇 |
2016年 | 1083篇 |
2015年 | 1192篇 |
2014年 | 1390篇 |
2013年 | 1944篇 |
2012年 | 1727篇 |
2011年 | 1636篇 |
2010年 | 1181篇 |
2009年 | 1164篇 |
2008年 | 1330篇 |
2007年 | 1364篇 |
2006年 | 1318篇 |
2005年 | 1203篇 |
2004年 | 1043篇 |
2003年 | 956篇 |
2002年 | 839篇 |
2001年 | 845篇 |
2000年 | 722篇 |
1999年 | 768篇 |
1998年 | 509篇 |
1997年 | 523篇 |
1996年 | 531篇 |
1995年 | 447篇 |
1994年 | 359篇 |
1993年 | 266篇 |
1992年 | 553篇 |
1991年 | 539篇 |
1990年 | 485篇 |
1989年 | 472篇 |
1988年 | 460篇 |
1987年 | 429篇 |
1986年 | 411篇 |
1985年 | 424篇 |
1984年 | 322篇 |
1983年 | 293篇 |
1982年 | 212篇 |
1981年 | 226篇 |
1979年 | 266篇 |
1978年 | 223篇 |
1977年 | 201篇 |
1976年 | 177篇 |
1974年 | 204篇 |
1973年 | 221篇 |
1972年 | 182篇 |
排序方式: 共有10000条查询结果,搜索用时 10 毫秒
1.
Kara S. Tanaka MD Veronica R. Andaya BA Steven W. Thorpe MD Kenneth R. Gundle MD James B. Hayden MD Yee-Cheen Duong MD Raffi S. Avedian MD David G. Mohler MD Lee J. Morse MD Melissa N. Zimel MD Richard J. O'Donnell MD Andrew Fang MD Robert Lor Randall MD Tina H. Tran BS Christin New BA Rosanna L. Wustrack MD other members of Study Group FORCE 《Journal of surgical oncology》2023,127(1):148-158
2.
3.
Hannah Lilly Mackenzie Bitzel Tatiana Pejnovic Joanna Schnell 《Physical Therapy Reviews》2019,24(5):195-207
AbstractBackground: Cerebral palsy (CP) is a common childhood disability. However, these individuals are now living longer lives, participating in adult roles, and seeking healthcare services. The transition from pediatric to adult healthcare for adolescents with CP is a challenging yet significant time. Adolescents experience several barriers during transition.Objectives: To utilize the environmental and personal dimensions of the ICF model in order to explore barriers when transitioning to adulthood as well as discuss characteristics and physical therapy implications needed to succeed within transition.Methods: Electronic searching of PubMed, CINAHL, ERIC, Scopus, ProQuest, and the Cochrane Library databases was concluded on January 9, 2019 for studies including transition between pediatric and adult healthcare in individuals diagnosed with CP. Two independent reviewers agreed upon inclusion, eligibility, and quality assessment of each study using the Mixed-Methods Appraisal Tool (MMAT).Results: Seven studies were included in the systematic review. Results for each study were separated based on the personal and environmental contextual factors of the ICF model and solutions to the barriers were then discussed.Conclusions: Research has provided proposed solutions to select barriers, however, other barriers have yet to be addressed. More research is needed to address these barriers and provide a model program that can be implemented within the healthcare systems to promote a successful transition for adolescents with CP from pediatric to adult services. 相似文献
4.
5.
6.
7.
Megan L. Robbins Robert C. Wright Ana María López Karen Weihs 《Journal of psychosocial oncology》2019,37(2):160-177
AbstractObjectives: This study examined word use as an indicator of interpersonal positive reframing in daily conversations of couples coping with breast cancer and as a predictor of stress.Design: The Electronically Activated Recorder (EAR) and Linguistic Inquiry and Word Count (LIWC) were used to examine naturally occurring word use conceptually linked to positive reframing (positive emotion, negative emotion, and cognitive processing words).Sample: Fifty-two couples coping with breast cancer.Methods: Couples wore the EAR, a device participants wear, that audio-recorded over one weekend (>16,000 sound files), and completed self-reports of positive reframing (COPE) and stress (Perceived Stress Scale). LIWC, a software program, measured word use.Findings: Both partners’ word use (i.e., positive emotion and cognitive processing words) was associated with their own reported positive reframing, and spouses’ word use was also indicative of patients’ positive reframing. Results also revealed that, in general, words indicating positive reframing predicted lower levels of stress.Conclusions: Findings supported the hypothesis that partners—and particularly spouses of breast cancer patients—may assist each other’s coping by positively reframing the cancer experience and other negative experiences in conversation. 相似文献
8.
目的 探讨在苯妥英钠(Phenytoin,PHT)促进大鼠牙周膜干细胞(Rat periodontal ligament stem cells,rPDLSCs)、大鼠骨髓间充质干细胞(Rat Bone Marrow Mesenchymal Stem Cells,rBMMSCs)黏附于牙骨质过程中,整合素α5β1(Integrin α5β1)起到的作用。方法 提取大鼠BMMSCs和PDLSCs,培养并纯化。通过细胞鉴定后,将获得的两种细胞各分为4组:40 mg/L PHT处理组、40 mg/L PHT+整合素α5抗体处理组、40 mg/L PHT+整合素β1抗体处理组、PBS处理组,每组细胞放入置有牙骨质片的96孔板处理4 h后,检测黏附于牙骨质片上的细胞量并做以比较。最后,利用qRT-PCR和Western blot检测40 mg/L PHT组与对照组细胞的整合素α5、β1亚基的mRNA与蛋白表达量。结果 40 mg/L PHT可促进rBMMSCs及rPDLSCs黏附于牙骨质片,加入整合素α5、β1抗体后,均明显抑制了40 mg/L PHT对rBMMSCs、rPDLSCs黏附于牙骨质的促进作用(P<0.01)。qRT-PCR、Western-blot结果显示PHT处理组的整合素α5、β1亚基表达量高于空白对照组(P<0.05)。结论 40 mg/L PHT能促进rBMMSCs、rPDLSCs黏附于牙骨质,该作用与整合素α5β1的表达上调密切相关。 相似文献
9.
10.
Rebecca Wright Caleb Ferguson Mustafa Bodrick Hanan Balkhy Debra Jackson Patricia M. Davidson 《Journal of clinical nursing》2020,29(13-14):2723-2729