全文获取类型
| 收费全文 | 33607篇 |
| 免费 | 3213篇 |
| 国内免费 | 53篇 |
专业分类
| 耳鼻咽喉 | 297篇 |
| 儿科学 | 1343篇 |
| 妇产科学 | 842篇 |
| 基础医学 | 4545篇 |
| 口腔科学 | 572篇 |
| 临床医学 | 3837篇 |
| 内科学 | 6111篇 |
| 皮肤病学 | 712篇 |
| 神经病学 | 3440篇 |
| 特种医学 | 813篇 |
| 外国民族医学 | 11篇 |
| 外科学 | 3485篇 |
| 综合类 | 421篇 |
| 一般理论 | 34篇 |
| 预防医学 | 4225篇 |
| 眼科学 | 935篇 |
| 药学 | 2430篇 |
| 1篇 | |
| 中国医学 | 41篇 |
| 肿瘤学 | 2778篇 |
出版年
| 2023年 | 227篇 |
| 2022年 | 372篇 |
| 2021年 | 900篇 |
| 2020年 | 553篇 |
| 2019年 | 936篇 |
| 2018年 | 1048篇 |
| 2017年 | 745篇 |
| 2016年 | 749篇 |
| 2015年 | 870篇 |
| 2014年 | 1153篇 |
| 2013年 | 1568篇 |
| 2012年 | 2199篇 |
| 2011年 | 2395篇 |
| 2010年 | 1242篇 |
| 2009年 | 1097篇 |
| 2008年 | 1712篇 |
| 2007年 | 1739篇 |
| 2006年 | 1644篇 |
| 2005年 | 1580篇 |
| 2004年 | 1504篇 |
| 2003年 | 1309篇 |
| 2002年 | 1219篇 |
| 2001年 | 695篇 |
| 2000年 | 706篇 |
| 1999年 | 579篇 |
| 1998年 | 270篇 |
| 1997年 | 258篇 |
| 1996年 | 227篇 |
| 1995年 | 210篇 |
| 1994年 | 187篇 |
| 1993年 | 180篇 |
| 1992年 | 432篇 |
| 1991年 | 429篇 |
| 1990年 | 417篇 |
| 1989年 | 419篇 |
| 1988年 | 361篇 |
| 1987年 | 418篇 |
| 1986年 | 338篇 |
| 1985年 | 354篇 |
| 1984年 | 287篇 |
| 1983年 | 264篇 |
| 1982年 | 159篇 |
| 1981年 | 159篇 |
| 1979年 | 280篇 |
| 1978年 | 220篇 |
| 1976年 | 159篇 |
| 1975年 | 162篇 |
| 1974年 | 182篇 |
| 1973年 | 172篇 |
| 1972年 | 171篇 |
排序方式： 共有10000条查询结果，搜索用时 15 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.
4.
5.
6.
Molly Orcutt Wendy C. King Melissa A. Kalarchian Michael J. Devlin Marsha D. Marcus Luis Garcia Kristine J. Steffen James E. Mitchell 《Surgery for obesity and related diseases》2019,15(2):295-303
Background
A history of childhood maltreatment and psychopathology are common in adults with obesity.Objectives
To report childhood maltreatment and to evaluate associations between severity and type of childhood maltreatment and lifetime history of psychopathology among adults with severe obesity awaiting bariatric surgery.Setting
Four clinical centers of the Longitudinal Assessment of Bariatric Surgery Research Consortium.Methods
The Childhood Trauma Questionnaire, which assesses presence/severity (i.e., none, mild, moderate, severe) of physical abuse, mental abuse, physical neglect, mental neglect, and sexual abuse, was completed by 302 female and 66 male bariatric surgery patients. Presurgery lifetime history of psychopathology and suicidal ideation/behavior were assessed with the Structured Clinical Interview for DSM-IV and the Suicidal Behavioral Questionnaire-Revised, respectively. Presurgery lifetime history of antidepressant use was self-reported.Results
Two thirds (66.6%) of females and 47.0% of males reported at least 1 form of childhood trauma; 42.4% and 24.2%, respectively, at greater than or equal to moderate severity. Among women, presence/greater severity of childhood mental or physical abuse or neglect was associated with a higher risk of history of psychopathology (i.e., major depressive disorder, posttraumatic stress disorder, other anxiety disorder, alcohol use disorder, binge eating disorder), suicidal ideation/behavior and antidepressant use (P for all ≤ .02). These associations were independent of age, race, education, body mass index, and childhood sexual abuse. Childhood sexual abuse was independently associated with a history of suicidal ideation/behavior and antidepressant use only (P for both ≤ .05). Statistical power was limited to evaluate these associations among men.Conclusion
Among women with obesity, presence/severity of childhood trauma was positively associated with relatively common psychiatric disorders. 相似文献7.
8.
9.
Hanna Lee Mary K. Tan Andrew T. Yan Paul Angaran Paul Dorian Claudia Bucci Jean C. Gregoire Alan D. Bell Martin S. Green Peter L. Gross Allan Skanes Charles R. Kerr L. Brent Mitchell Jafna L. Cox Vidal Essebag Brett Heilbron Krishnan Ramanathan Carl Fournier Shaun G. Goodman 《The Canadian journal of cardiology》2019,35(2):160-168
Background
Physicians treating nonvalvular atrial fibrillation (AF) assess stroke and bleeding risks when deciding on anticoagulation. The agreement between empirical and physician-estimated risks is unclear. Furthermore, the association between patient and physician sex and anticoagulation decision-making is uncertain.Methods
We pooled data from 2 national primary care physician chart audit databases of patients with AF (Facilitating Review and Education to Optimize Stroke Prevention in Atrial Fibrillation and Coordinated National Network to Engage Physicians in the Care and Treatment of Patients with Atrial Fibrillation Chart Audit) with a combined 1035 physicians (133 female, 902 male) and 10,927 patients (4567 female and 6360 male).Results
Male physicians underestimated stroke risk in female patients and overestimated risk in male patients. Female physicians estimated stroke risk well in female patients but underestimated the risk in male patients. Risk of bleeding was underestimated in all. Despite differences in risk assessment by physician and patient sex, > 90% of patients received anticoagulation across all subgroups. There was modest agreement between physician estimated and calculated (ie, CHADS2 score) stroke risk: Kappa scores were 0.41 (0.35-0.47) for female physicians and 0.34 (0.32-0.36) for male physicians.Conclusions
Our study is the first to examine the association between patient and physician sex influences and stroke and bleeding risk estimation in AF. Although there were differences in agreement between physician estimated stroke risk and calculated CHADS2 scores, these differences were small and unlikely to affect clinical practice; further, despite any perceived differences in the accuracy of risk assessment by sex, most patients received anticoagulation. 相似文献10.
Ferdynand Hebal Elissa Port Catherine J. Hunter Bryan Malas Jared Green Marleta Reynolds 《Journal of pediatric surgery》2019,54(4):656-662