全文获取类型
收费全文 | 19909篇 |
免费 | 1703篇 |
国内免费 | 44篇 |
专业分类
耳鼻咽喉 | 237篇 |
儿科学 | 554篇 |
妇产科学 | 516篇 |
基础医学 | 2806篇 |
口腔科学 | 1160篇 |
临床医学 | 2274篇 |
内科学 | 3795篇 |
皮肤病学 | 348篇 |
神经病学 | 1815篇 |
特种医学 | 584篇 |
外国民族医学 | 1篇 |
外科学 | 2255篇 |
综合类 | 281篇 |
一般理论 | 12篇 |
预防医学 | 2202篇 |
眼科学 | 437篇 |
药学 | 1316篇 |
中国医学 | 82篇 |
肿瘤学 | 981篇 |
出版年
2023年 | 116篇 |
2022年 | 232篇 |
2021年 | 467篇 |
2020年 | 354篇 |
2019年 | 444篇 |
2018年 | 605篇 |
2017年 | 407篇 |
2016年 | 439篇 |
2015年 | 488篇 |
2014年 | 695篇 |
2013年 | 925篇 |
2012年 | 1242篇 |
2011年 | 1300篇 |
2010年 | 658篇 |
2009年 | 623篇 |
2008年 | 977篇 |
2007年 | 1012篇 |
2006年 | 947篇 |
2005年 | 877篇 |
2004年 | 740篇 |
2003年 | 658篇 |
2002年 | 662篇 |
2001年 | 466篇 |
2000年 | 446篇 |
1999年 | 421篇 |
1998年 | 161篇 |
1997年 | 140篇 |
1996年 | 114篇 |
1995年 | 119篇 |
1994年 | 131篇 |
1992年 | 291篇 |
1991年 | 292篇 |
1990年 | 268篇 |
1989年 | 242篇 |
1988年 | 258篇 |
1987年 | 258篇 |
1986年 | 262篇 |
1985年 | 220篇 |
1984年 | 198篇 |
1983年 | 190篇 |
1982年 | 137篇 |
1981年 | 128篇 |
1980年 | 107篇 |
1979年 | 194篇 |
1978年 | 141篇 |
1977年 | 113篇 |
1976年 | 131篇 |
1975年 | 132篇 |
1974年 | 137篇 |
1973年 | 104篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Marion Feldman Mayssa’ El Husseini Elisabetta Dozio Elise Drain Rahmeth Radjack Marie Rose Moro 《Child Care in Practice》2019,25(2):215-226
ABSTRACTClose observation of the interactions between a traumatised mother and her infant son provides information on the modes of transmission of psychic trauma in the mother–infant dyad. Following the presentation of a current literature review on the theme, the subject of “radioactive residue” and counter-transference in the transmission of psychic trauma from mother to infant will be illustrated through a clinical case study that focuses on a Haitian mother and her two-year-old infant son who has been referred to a “transitional care nursery” in urban Paris. The encounter with this mother–infant dyad is analysed through observing the quality of the interactions that take place between the mother and infant in order to determine how a particularly traumatic narrative impacts the mother–infant relationship, in addition to relations with the clinician. Mother and infant respond to one another through the emission and reception of “radioactive residues” as hypothesized by Gampel. This clinical case study shows that there is a need to consider transcultural factors and collective experience and history when analysing traumatic events. Additionally, the case study shows that counter-transference can be an effective clinical tool for gaining access to an infant's experience as the recipient of a traumatic narrative. 相似文献
3.
Cost‐Effectiveness and Cost‐Utility Analysis of Spinal Cord Stimulation in Patients With Failed Back Surgery Syndrome: Results From the PRECISE Study
下载免费PDF全文
![点击此处可从《Neuromodulation》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Furio Zucco MD Roberta Ciampichini MSc Angelo Lavano MD Amedeo Costantini MD Marisa De Rose MD Paolo Poli MD Gianpaolo Fortini MD Laura Demartini MD Enrico De Simone MD Valentino Menardo MD Piero Cisotto MD Mario Meglio MD Luciana Scalone PhD Lorenzo G. Mantovani DSc 《Neuromodulation》2015,18(4):266-276
4.
Caio Henrique de Carvalho Assuno Júlio Csar Trabanco Raquel Fornaziero Gomes Renata Rodrigues Moreira Alessandra Giannella Samelli 《La Medicina del lavoro》2019,110(4):304
Objective:The present study evaluates a training program for fitting different hearing protection devices (HPDs) based on personal attenuation rating (PAR) before, immediately after, and six months after training.Methods:A total of 67 workers from a public university in the city of São Paulo, Brazil, were invited to participate in the measurement of PARs for foam and silicone protectors through the 3M™ E-A-Rfit Validation System. Two evaluations were performed for each protector at each sampling date: one after reading printed material (the package instructions) and another after being trained by an audiologist. The same procedures were repeated after six months. The final sample consisted of 30 individuals. ANOVA was used for statistical analysis.Results:Larger PAR values were observed after training by the audiologist, and smaller values were observed after six months. Then, after re-training, the values increased again. There were no statistically significant differences in PAR among the HPDs tested. Even after the two training sessions, 23 to 27% of the subjects did not obtain adequate PAR values.Conclusion:These findings emphasize the need for continual worker training in the correct fit of earplug HPDs and the importance of longitudinal PAR monitoring. In addition, some workers, despite the training provided, did not adapt to the HPDs used. Therefore, it is essential that other protection methods and/or other HPD types are made available to these individuals.Key words: Hearing, noise-induced hearing loss, occupational health, personal protective equipment, hearing protection devices 相似文献
5.
Paola Gilsanz Maria M. Corrada Claudia H. Kawas Elizabeth Rose Mayeda M. Maria Glymour Charles P. Quesenberry Catherine Lee Rachel A. Whitmer 《Alzheimer's & dementia》2019,15(4):497-505
Introduction
Little is known about dementia incidence in diverse populations of oldest-old, the age group with highest dementia incidence.Methods
Incident dementia diagnoses from 1/1/2010 to 9/30/2015 were abstracted from medical records for 2350 members of an integrated health care system in California (n = 1702 whites, n = 375 blacks, n = 105 Latinos, n = 168 Asians) aged ≥90 in 2010. We estimated race/ethnicity-specific age-adjusted dementia incidence rates and implemented Cox proportional hazards models and Fine and Gray competing risk of death models adjusted for demographics and comorbidities in midlife and late-life.Results
Dementia incidence rates (n = 771 cases) were lowest among Asians (89.9/1000 person-years), followed by whites (96.9/1000 person-years), Latinos (105.8/1000 person-years), and blacks (121.5/1000 person-years). Cox regression and competing risk models estimated 28% and 36% higher dementia risk for blacks versus whites adjusting for demographics and comorbidities.Discussion
Patterns of racial/ethnic disparities in dementia seen in younger older adults continue after the age of 90 years, though smaller in magnitude. 相似文献6.
Joseane Balan Da Silva Gleison Daion Piovezana Bossolani Camila Piva Greicy Brisa Malaquias Dias Jancarlo Gomes Ferreira Diogo Francisco Rossoni 《International journal of environmental health research》2016,26(5-6):578-588
The spatial distribution of enteroparasitosis in an indigenous village from Paraná was evaluated to identify areas of risk for these infections. A cross-sectional study (from November 2010 to June 2011) was performed using Three Faecal Test® and Kato &; Katz method and a questionnaire on housing and hygiene conditions was administered. Local geostatistical analyses were performed to determine the spatial distribution of intestinal parasitic infections. The overall prevalence of enteroparasites was 67.2?% (457/680), and the most prevalent taxa were Ascaris lumbricoides (48.8?%) and Trichuris trichiura (44.7?%). The prevalence of heavy infection by soil-transmitted helminths was 3.6?% and the families lived in houses with an average of 5.1 residents and < 2 bedrooms per household. The average number of species per individual present spatial heterogeneity with the highest values (≥0.8) in areas with high clustering of residences. The visualization of the spatial distribution of intestinal parasites in this indigenous village is an important contribution to determining health risk areas and planning decisions and services. 相似文献
7.
Marcelo Sato‐Sano Solange Pistori Teixeira Juliano Cordova Vargas Otvio Cesar Carvalho Guimares Baiocchi Milvia Maria Simes e Silva Enokihara Elimar Elias Gomes Mariana Dias Batista 《The Journal of dermatology》2019,46(7):618-621
Eosinophilic dermatosis of hematological malignancy is a paraneoplastic skin eruption associated with chronic lymphocytic leukemia and other B‐cell malignancies. It clinically resembles an insect bite reaction and it can precede the symptoms of the hematological malignancy or be related to a more aggressive course. Different treatments have been proposed, but partial response and recurrence are frequent. Herein, we describe a case of eosinophilic dermatosis associated with mantle cell lymphoma with remission after lenalidomide therapy. 相似文献
8.
9.
10.
Thaís dos Santos Fontes Pereira Carolina Cavalieri Gomes Peter A Brennan Felipe Paiva Fonseca Ricardo Santiago Gomez 《Journal of oral pathology & medicine》2019,48(1):3-9
Fibrous dysplasia is a non‐neoplastic developmental process that affects the craniofacial bones, characterized by painless enlargement as a result of bone substitution by abnormal fibrous tissue. Postzygotic somatic activating mutations in the GNAS1 gene cause fibrous dysplasia and have been extensively investigated, as well as being helpful in the differential diagnosis of the disease. Fibrous dysplasia may involve one (monostotic) or multiple bones (polyostotic), sporadically or in association with McCune‐Albright syndrome, Jeffe‐Lichenstein syndrome, or Mazabreud syndrome. This review summarizes the current knowledge on fibrous dysplasia, emphasizing the value of integrating the understanding of its molecular pathogenesis with the clinical, radiological, and histopathological features. In addition, we address important aspects related to the differential diagnosis and patient management. 相似文献