全文获取类型
收费全文 | 22264篇 |
免费 | 1874篇 |
国内免费 | 98篇 |
专业分类
耳鼻咽喉 | 209篇 |
儿科学 | 635篇 |
妇产科学 | 678篇 |
基础医学 | 3294篇 |
口腔科学 | 445篇 |
临床医学 | 2578篇 |
内科学 | 4474篇 |
皮肤病学 | 428篇 |
神经病学 | 2356篇 |
特种医学 | 713篇 |
外国民族医学 | 1篇 |
外科学 | 2404篇 |
综合类 | 297篇 |
一般理论 | 17篇 |
预防医学 | 2124篇 |
眼科学 | 510篇 |
药学 | 1476篇 |
中国医学 | 71篇 |
肿瘤学 | 1526篇 |
出版年
2023年 | 149篇 |
2022年 | 141篇 |
2021年 | 571篇 |
2020年 | 393篇 |
2019年 | 487篇 |
2018年 | 616篇 |
2017年 | 463篇 |
2016年 | 518篇 |
2015年 | 565篇 |
2014年 | 787篇 |
2013年 | 1021篇 |
2012年 | 1482篇 |
2011年 | 1465篇 |
2010年 | 776篇 |
2009年 | 757篇 |
2008年 | 1175篇 |
2007年 | 1222篇 |
2006年 | 1190篇 |
2005年 | 1191篇 |
2004年 | 1027篇 |
2003年 | 907篇 |
2002年 | 850篇 |
2001年 | 390篇 |
2000年 | 381篇 |
1999年 | 377篇 |
1998年 | 214篇 |
1997年 | 190篇 |
1996年 | 152篇 |
1995年 | 163篇 |
1994年 | 140篇 |
1993年 | 135篇 |
1992年 | 266篇 |
1991年 | 264篇 |
1990年 | 258篇 |
1989年 | 211篇 |
1988年 | 244篇 |
1987年 | 234篇 |
1986年 | 238篇 |
1985年 | 206篇 |
1984年 | 179篇 |
1983年 | 174篇 |
1982年 | 126篇 |
1981年 | 128篇 |
1980年 | 104篇 |
1979年 | 190篇 |
1978年 | 130篇 |
1977年 | 97篇 |
1976年 | 123篇 |
1975年 | 118篇 |
1974年 | 134篇 |
排序方式: 共有10000条查询结果,搜索用时 46 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
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.
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.
Viviana Maestrini Lucia I. Birtolo Sara Cimino Paolo Severino Massimo Mancone Marco Francone Sanjay M. Banypersad Flavia Ventriglia Luigi Tritapepe Fabio Miraldi Francesco Fedele 《Echocardiography (Mount Kisco, N.Y.)》2019,36(5):992-995
A 20‐year‐old Congolese woman presented with presyncope, dyspnea, and anasarca. Past medical history was unremarkable. Echocardiography revealed a rare combination of giant right atrium (RA), a dilated and hypertrophied right ventricle, subvalvular pulmonary stenosis (subPS), severe tricuspid regurgitation (TR), pericardial effusion and what appeared to be a spontaneously closed ventricular septal defect (VSD). Cardiac Magnetic Resonance and Cardiac Computed Tomography confirmed the findings excluding the presence of intra‐cardiac and extra‐cardiac shunt and other associated congenital anomalies. The patient underwent subPS resection, right atrioplasty, and tricuspid annuloplasty. Multimodality approach facilitated the detection of the abnormalities and provided clarity when determining the optimal surgical strategy. 相似文献
7.
8.
Oliver Sartor MD Daniel Heinrich MD Neil Mariados MD Maria José Méndez Vidal MD Daniel Keizman MD Camilla Thellenberg Karlsson MD Avivit Peer MD Giuseppe Procopio MD Stephen J. Frank MD Kalevi Pulkkanen MD Eli Rosenbaum MD Stefano Severi MD José Trigo MD Lucia Trandafir MD Volker Wagner MD Rui Li MS Luke T. Nordquist MD 《The Prostate》2019,79(14):1683-1691
9.
Alessandro Abbouda Paolo Tortorella Lucia Restivo Elisa Santoro Federica De Marco Maurizio La Cava 《Seminars in ophthalmology》2016,31(6):532-541
Purpose: To evaluate the rate and onset of intraoperative and postoperative complications post-phacoemulsification. Methods: One hundred sixty-two eyes of 145 patients with uveitis who underwent phacoemulsification between 2006 and 2009 were identified through surgical record review. Fifty-nine eyes of 46 patients met the inclusion criteria. Hazard ratio (HR) and Kaplan-Meier survival probability were calculated for each class of uveitis. Results: Macular edema (ME) resulted to be associated to chronic postoperative inflammation (r?=?0.6; p?=?0.00) and mostly related to patients who presented more than one postoperative relapse/year (r?=?0.2; p?=?0.02). Fuchs uveitis resulted to be a risk factor for posterior capsule opacification (PCO) (HR 3.36 IC95%1.0-10.5; p?=?0.03). Hypotony and elevated intraocular pressure (IOP) were detected in the anterior uveitis group (0.02 EY). Conclusion: The HR to develop ME was significantly related to chronic anterior uveitis. PCO and elevated IOP are most frequent in Fuchs uveitis. The postoperative visual acuity result was good among all the uveitis groups. 相似文献
10.
Marco Maruzzo Umberto Basso Eugenio Borsatti Laura Evangelista Filippo Alongi Orazio Caffo Francesca Maines Sara Galuppo Rocco De Vivo Fable Zustovich Dario Palleschi Andrea Zivi Teodoro Sava Mariella Sorarù Roberto Iacovelli Maurizio Nicodemo Susanne Baier Lucia Fratino Vittorina Zagonel 《Clinical genitourinary cancer》2019,17(1):e187-e194