全文获取类型
收费全文 | 4591篇 |
免费 | 287篇 |
国内免费 | 29篇 |
专业分类
耳鼻咽喉 | 89篇 |
儿科学 | 172篇 |
妇产科学 | 78篇 |
基础医学 | 388篇 |
口腔科学 | 122篇 |
临床医学 | 660篇 |
内科学 | 759篇 |
皮肤病学 | 66篇 |
神经病学 | 561篇 |
特种医学 | 57篇 |
外科学 | 379篇 |
综合类 | 388篇 |
现状与发展 | 1篇 |
预防医学 | 719篇 |
眼科学 | 70篇 |
药学 | 226篇 |
3篇 | |
中国医学 | 93篇 |
肿瘤学 | 76篇 |
出版年
2024年 | 6篇 |
2023年 | 126篇 |
2022年 | 178篇 |
2021年 | 255篇 |
2020年 | 213篇 |
2019年 | 245篇 |
2018年 | 278篇 |
2017年 | 177篇 |
2016年 | 184篇 |
2015年 | 121篇 |
2014年 | 359篇 |
2013年 | 352篇 |
2012年 | 264篇 |
2011年 | 314篇 |
2010年 | 235篇 |
2009年 | 247篇 |
2008年 | 280篇 |
2007年 | 220篇 |
2006年 | 168篇 |
2005年 | 115篇 |
2004年 | 98篇 |
2003年 | 89篇 |
2002年 | 57篇 |
2001年 | 50篇 |
2000年 | 49篇 |
1999年 | 46篇 |
1998年 | 38篇 |
1997年 | 22篇 |
1996年 | 22篇 |
1995年 | 12篇 |
1994年 | 7篇 |
1993年 | 5篇 |
1992年 | 7篇 |
1991年 | 10篇 |
1990年 | 5篇 |
1989年 | 12篇 |
1988年 | 9篇 |
1987年 | 4篇 |
1986年 | 5篇 |
1985年 | 5篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1982年 | 5篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1973年 | 1篇 |
1972年 | 2篇 |
1970年 | 1篇 |
排序方式: 共有4907条查询结果,搜索用时 15 毫秒
61.
《Educación Médica》2021,22(3):163-171
In Spain, the evaluation of internal resident's satisfaction with the training they receive is legally mandatory for autonomous regions. Beyond this obligation, the evaluation of training leads to its improvement. However, an effective evaluation procedure requires a series of steps that should not be overlooked. Throughout the text, we will give a series of clues that will help those responsible for training, at different levels, to start up a procedure of this type. We will talk about technical requirements for the construction of an effective questionnaire, the most appropriate way to apply the survey in the field of training residents, the importance of statistically validating the questionnaire in order to obtain usable conclusions, and the dissemination of results, from the review of the process itself. Finally, as an example, we will bring up the survey of residents of specialized health training in the Autonomous Community of the Basque Country from 2009 to 2018. 相似文献
62.
63.
64.
ObjectiveTo assess reliability, construct validity, responsiveness, and interpretability for Neck OutcOme Score (NOOS), Neck Disability Index (NDI), and Short Form–36 (SF-36) in neck pain patients.Study Design and SettingInternal consistency was assessed by Cronbach alpha. Test-retest reliability was evaluated by intraclass correlation coefficient (ICC), and measurement error was estimated from the standard error of measurement. Responsiveness was assessed as standardized response mean (SRM) and interpretability from the minimal important difference (MID). Construct validity was tested correlating subscale scores from NOOS and SF-36 and NDI items.ResultsAt baseline, 196 neck pain patients were included. Cronbach α was adequate for most NOOS subscales, NDI, and SF-36 with few exceptions. Good to excellent reliability was found for NOOS subscales (ICC 0.88–0.95), for NDI, and for SF-36 with few exceptions. For NOOS, minimal detectable changes varied between 1.1 and 1.9, and construct validity was supported. SRMs were higher for NOOS subscales (0.19–0.42), compared to SF-36 and NDI. MID values varied between 15.0 and 24.1 for NOOS subscales.ConclusionsIn conclusion, the NOOS is a reliable, valid, and responsive measure of self-reported disability in neck pain patients, performing at least as well or better than the commonly used SF-36 and NDI. 相似文献
65.
《Public Health Forum》2014,22(1):20.e1-20.e4
Measuring burnout symptoms with COPSOQ, a standardized and validated questionnaire, is an important contribution to risk assessment of work. Comparison between the results found in a certain company and datasets in the COPSOQ database allows to estimate the severity of burnout occurance and to develop suitable measures of prevention. It is essential to have reliable knowledge about the factors which influence burnout symptoms positively as well as negatively. This knowledge can be analyzed due to a large number of assessments carried out with the aim of improving occupational health. 相似文献
66.
Very early signs of autism reported by parents include many concerns not specific to autism criteria
Vincent Guinchat Brigitte ChamakBeatrice Bonniau Nicolas BodeauDidier Perisse David Cohen Anne Danion 《Research in autism spectrum disorders》2012,6(2):589
This study assessed parents’ first concerns about their autistic child. This information was categorized so that it could help healthcare professionals improve early detection of autism. We designed a questionnaire using an open-ended format, and 459 questionnaires were completed by parents to assess difficulties encountered in obtaining a diagnosis for their child. Answers about their first motive of concerns were categorized and compared with regards to age, gender, birth order, age of onset, delay in seeking professional advice, and delay in diagnosis. Concerns about social development or autistic behaviors were frequent, but not exclusive. Parents were divided into three clusters of concerns: (a) an “early awareness group”: which included motor problems and passivity (14.6 months); (b) “intermediate awareness group”: included emotional, hyperactivity, and sleep problems (15.3 months); and (c) a “later awareness group”: which included communication problems, poor social interaction, and autistic-type behaviors (22.3 months). Parents who noticed general concerns not specific to autism were worried earlier, but received a later diagnosis. We suggest that motor problems, and/or emotional problems, and/or the level of a child's activity should encourage frontline professionals to seek autistic symptoms in infants. 相似文献
67.
《Sleep medicine》2014,15(7):789-797
ObjectiveThis study investigated reliability, validity, and clinical relevance of the Adolescent Sleep Hygiene Scale (ASHS) in Dutch adolescents.MethodsThe Dutch translation of the ASHS was administered to 186 normal-sleeping adolescents and 112 adolescents with insomnia. Their sleep variables were measured using sleep logs and questionnaires. From the insomnia group, scores were also obtained after six weeks of cognitive behavioral therapy for insomnia (n = 58) or waiting list (n = 22).ResultsThe full scale of the ASHS had acceptable internal consistency. The results showed moderate to strong correlations of the ASHS (domains) with sleep quality, sleep duration and chronic sleep reduction. Furthermore, the Dutch ASHS was able to discriminate between normal sleepers and adolescents with insomnia, and scores of adolescents with insomnia improved after treatment.ConclusionsThese findings confirm the importance of sleep hygiene in adolescent sleep, and contribute to the validity of the ASHS and its applicability in research and clinical practice. 相似文献
68.
69.
《International Journal of Obstetric Anesthesia》2014,23(4):335-340
BackgroundLife-threatening anaphylaxis has been reported in women exposed to latex during surgery. We compared a written screening questionnaire to identify suspected latex sensitivity with a verbal inquiry used previously in a historical control group of women undergoing cesarean delivery to determine if the incidence of suspected latex anaphylaxis could be reduced.MethodsTo identify suspected latex sensitivity among women undergoing elective cesarean delivery in a single-site tertiary unit, a nine-item written screening questionnaire was compared to historical use of a standard verbal inquiry “Are you allergic to medications or latex?”. Women who had suspected latex sensitivity risk factors, or who had known latex allergy, underwent latex-free surgery. Women with suspected anaphylaxis during cesarean delivery were recommended to undergo allergen testing. The primary study outcome was suspected anaphylaxis incidence during the two periods: historical control January to December 2008, questionnaire March 2010 to April 2011.ResultsThe questionnaire identified suspected latex sensitivity in 66 of 453 women (14.6%) who completed the questionnaire. The standard verbal inquiry group had identified 12 of 460 women (2.6%) with self-reported latex sensitivity. The incidence of suspected anaphylaxis during cesarean delivery was significantly lower during the questionnaire period when compared to historical controls (3/516, 0.6% vs. 11/460, 2.4%, P=0.015). For both groups, 13 of 14 women (92.9%) with suspected latex anaphylaxis were contactable; five of 13 (38.5%) had undergone allergen testing and all were positive for latex.ConclusionsUse of the written screening questionnaire was associated with fewer cases of suspected anaphylaxis during cesarean delivery compared with the historical control. Most women with suspected anaphylaxis did not perform allergy testing; however, all who did were positive for latex. 相似文献
70.
目的了解医护人员营养知识现状,为临床营养学科建设和发展提供依据。方法随机抽取攀枝花市某三级甲等医院临床及医技人员180人进行问卷调查,用SPSS 11.0统计软件进行统计分析,2个均数的比较用t检验,多个均数的比较用方差分析,两两比较用LSD法。结果该院医护人员营养知识平均得分为75.46±9.66,不同职称、学历、职务、职业、性别之间差异无统计学意义;但不同科室间有差异,经两两比较内科得分高于外科、妇产科和其他科室,儿科得分也高于外科和妇产科,其他科室得分低于内科而高于妇产科。基础营养知识平均得分(87.14±7.85)显著高于临床营养知识平均得分(59.76±15.10)。得分合格率分布不均衡,基础营养知识及格率占98.69%,临床营养知识及格率仅占52.29%。结论该院临床及医技人员营养知识尚停留在学历教育阶段,临床营养知识普遍缺乏,已明显滞后于该学科发展的需要。 相似文献