全文获取类型
| 收费全文 | 1262247篇 |
| 免费 | 96508篇 |
| 国内免费 | 1576篇 |
专业分类
| 耳鼻咽喉 | 16313篇 |
| 儿科学 | 40999篇 |
| 妇产科学 | 34947篇 |
| 基础医学 | 189392篇 |
| 口腔科学 | 34731篇 |
| 临床医学 | 117755篇 |
| 内科学 | 247798篇 |
| 皮肤病学 | 27281篇 |
| 神经病学 | 101846篇 |
| 特种医学 | 46758篇 |
| 外国民族医学 | 265篇 |
| 外科学 | 178696篇 |
| 综合类 | 25749篇 |
| 现状与发展 | 3篇 |
| 一般理论 | 568篇 |
| 预防医学 | 104649篇 |
| 眼科学 | 28046篇 |
| 药学 | 92554篇 |
| 6篇 | |
| 中国医学 | 2022篇 |
| 肿瘤学 | 69953篇 |
出版年
| 2018年 | 13532篇 |
| 2017年 | 10391篇 |
| 2016年 | 11323篇 |
| 2015年 | 13078篇 |
| 2014年 | 17999篇 |
| 2013年 | 27476篇 |
| 2012年 | 37574篇 |
| 2011年 | 39966篇 |
| 2010年 | 23054篇 |
| 2009年 | 22253篇 |
| 2008年 | 37760篇 |
| 2007年 | 40395篇 |
| 2006年 | 39979篇 |
| 2005年 | 39111篇 |
| 2004年 | 37565篇 |
| 2003年 | 35972篇 |
| 2002年 | 34879篇 |
| 2001年 | 56032篇 |
| 2000年 | 57044篇 |
| 1999年 | 48097篇 |
| 1998年 | 13397篇 |
| 1997年 | 12225篇 |
| 1996年 | 12646篇 |
| 1995年 | 11917篇 |
| 1994年 | 11108篇 |
| 1993年 | 10402篇 |
| 1992年 | 38199篇 |
| 1991年 | 37674篇 |
| 1990年 | 36447篇 |
| 1989年 | 35260篇 |
| 1988年 | 32690篇 |
| 1987年 | 32027篇 |
| 1986年 | 30524篇 |
| 1985年 | 28786篇 |
| 1984年 | 21941篇 |
| 1983年 | 19192篇 |
| 1982年 | 11364篇 |
| 1981年 | 10321篇 |
| 1979年 | 20944篇 |
| 1978年 | 15395篇 |
| 1977年 | 12790篇 |
| 1976年 | 11847篇 |
| 1975年 | 12810篇 |
| 1974年 | 15588篇 |
| 1973年 | 15362篇 |
| 1972年 | 14512篇 |
| 1971年 | 13552篇 |
| 1970年 | 12786篇 |
| 1969年 | 12065篇 |
| 1968年 | 11229篇 |
排序方式： 共有10000条查询结果，搜索用时 31 毫秒
161.
162.
163.
164.
165.
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166.
167.
168.
169.
170.
I. D. Petrova V. S. Petrov S. V. Seregin E. M. Malkova 《Molecular Genetics, Microbiology and Virology》2015,30(4):186-191
This paper presents an analysis of samples from 75 patients for the presence of rubella virus, viral RNA, and specific antibodies. For all samples, RNA detection was higher than virus isolation. It was found that it was not possible to isolate rubella virus in every sixth clinical sample containing the viral RNA. Primary structures of the site (from the 8072nd to 8291st nucleotide) of the rubella virus genome from 14 samples were determined. This paper shows that all the samples of rubella virus belong to the first genotype, subgroups 1h, and very likely to subgroups 1a and 1F. For the first time, the circulation of rubella virus of the genotype has been shown both prior to the start of mass vaccination in Western Siberia and after. 相似文献