全文获取类型
收费全文 | 12034篇 |
免费 | 578篇 |
国内免费 | 79篇 |
专业分类
耳鼻咽喉 | 81篇 |
儿科学 | 141篇 |
妇产科学 | 258篇 |
基础医学 | 1739篇 |
口腔科学 | 275篇 |
临床医学 | 2175篇 |
内科学 | 1213篇 |
皮肤病学 | 104篇 |
神经病学 | 753篇 |
特种医学 | 258篇 |
外科学 | 1530篇 |
综合类 | 728篇 |
一般理论 | 1篇 |
预防医学 | 1625篇 |
眼科学 | 37篇 |
药学 | 1162篇 |
1篇 | |
中国医学 | 113篇 |
肿瘤学 | 497篇 |
出版年
2024年 | 12篇 |
2023年 | 297篇 |
2022年 | 631篇 |
2021年 | 707篇 |
2020年 | 683篇 |
2019年 | 805篇 |
2018年 | 838篇 |
2017年 | 547篇 |
2016年 | 383篇 |
2015年 | 381篇 |
2014年 | 952篇 |
2013年 | 908篇 |
2012年 | 532篇 |
2011年 | 658篇 |
2010年 | 540篇 |
2009年 | 602篇 |
2008年 | 481篇 |
2007年 | 444篇 |
2006年 | 391篇 |
2005年 | 261篇 |
2004年 | 236篇 |
2003年 | 181篇 |
2002年 | 138篇 |
2001年 | 127篇 |
2000年 | 106篇 |
1999年 | 81篇 |
1998年 | 66篇 |
1997年 | 66篇 |
1996年 | 49篇 |
1995年 | 43篇 |
1994年 | 36篇 |
1993年 | 45篇 |
1992年 | 39篇 |
1991年 | 30篇 |
1990年 | 29篇 |
1989年 | 23篇 |
1988年 | 28篇 |
1987年 | 23篇 |
1986年 | 16篇 |
1985年 | 49篇 |
1984年 | 34篇 |
1983年 | 20篇 |
1982年 | 33篇 |
1981年 | 22篇 |
1980年 | 26篇 |
1979年 | 21篇 |
1978年 | 13篇 |
1977年 | 16篇 |
1974年 | 9篇 |
1973年 | 13篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
《Cancer radiothérapie》2022,26(8):1034-1044
PurposeAssess the feasibility of a randomized controlled trial (RCT) exploring the use of medical imaging as a therapeutic education (TPE) intervention in external radiation therapy.Materials and methodsExperimental feasibility trial of “RCT” type carried out in a single-center, between November 2019 and March 2020, following adult patients treated by thoracic radiotherapy. In addition to the information usually given, the experimental group benefited from an intervention consisting in the visualization of their own medical images using the open-source software “Stone of Orthanc”.ResultsForty-nine patients were recruited with a refusal rate of 8.16% (4/49). 20 patients were withdrawn from the study for health reasons (COVID), 10 for medical reasons. All the remaining 15 participants completed the process. Although not significant, the experimental group showed a median gain in the perception of knowledge compared to the control group (+ 1.9 (1.6 – 2.2)) vs (+ 1.4 (1.4 – 1.8)), as well as a decrease in scores related to anxiety (? 3.0 (?4.5 - (?2.0)) vs ? 1.0 (?5.0 - 0.0)) and emotional distress ((? 5.0 (? 7.5 - (? 3.5)) vs (? 2.0 (? 5.0 - (? 1.0)) A significant reduction (p = 0.043) is observed for the depression score ((? 2.0 (?3.0 - (?1.5)) vs (0.0 (0.0 – 0.0)).ConclusionThis study demonstrates the feasibility of the project, with promising preliminary results. Some adaptations in order to conduct a larger-scale RCT are highlighted. 相似文献
4.
5.
M. Simons R. Kimble S. McPhail Z. Tyack 《Burns : journal of the International Society for Burn Injuries》2019,45(8):1792-1809
BackgroundThe measurement of health-related quality of life (HRQoL) provides information about the perceived burden of the health condition and treatments from a lived experience. The Brisbane Burn Scar Impact Profile (caregiver report for young children, BBSIP0–8), developed in 2013, is a proxy-report measure of burn scar-specific HRQoL. The aim of this study was to report its psychometric properties in line with an evaluative purpose.MethodsCaregivers of children up to 8 years of age at risk of burn scarring were recruited into a prospective, longitudinal cohort study. Caregivers completed the BBSIP0–8, Pediatric Quality of Life Inventory and Patient Observer Scar Assessment Scale at baseline (approximately ≥85% of the total body surface area re-epithelialised), 1–2 weeks after baseline and 1-month after baseline. Psychometric properties measured included internal consistency, test–retest reliability, validity and responsiveness.ResultsEighty-six caregivers of mostly male children (55%), of a median age (IQR) of 1 year, 10 months (2 years, 1 month) and total body surface area burn of 1.5% (3.0%) were recruited. Over one third of participants were grafted and 15% had contractures or skin tightness at baseline. Internal consistency of ten item groups ranged from 0.73 to 0.96. Hypothesised correlations of changes in the BBSIP0–8 items with changes in criterion measures supported longitudinal validity (ρ ranging from ?0.73 to 0.68). The majority of item groups had acceptable reproducibility (ICC = 0.65–0.83). The responsiveness of five item groups was supported (AUC = 0.71–0.90).ConclusionThe psychometric properties tested support the use of the BBSIP0–8 as an evaluative measure of burn scar-related health-related quality of life for children aged below eight years in the early post-acute period of rehabilitation. Further investigation at longer time period after burn injury is indicated. 相似文献
6.
《Clinical neurophysiology》2019,130(8):1311-1319
ObjectiveUnder General Anesthesia (GA), age and Burst Suppression (BS) are associated with cognitive postoperative complications, yet how these parameters are related to per-operative EEG and hypnotic doses is unclear. In this prospective study, we address this question comparing age and BS occurrences with a new score (BPTIVA) based on Propofol doses, EEG and alpha-band power spectral densities, evaluated for SEF95 = 8–13 Hz.Methods59 patients (55 [34–67] yr, 67% female) undergoing neuroradiology or orthopedic surgery were included. Total IntraVenous Anesthesia was used for Propofol and analgesics infusion. Cerebral activity was monitored from a frontal electrodes montage EEG.ResultsBPTIVA was inversely correlated with age (Pearson r = −0.78, p < 0.001), and was significantly lower (p < 0.001) when BS occurred during the GA first minutes (induction). Additionally, the age-free BPTIVA score was better associated with BS at induction than age (AUC = 0.94 versus 0.82, p < 0.05).ConclusionWe designed BPTIVA score based on hypnotics and EEG. It was correlated with age yet was better associated to BS occurring during GA induction, the latter being a cerebral fragility sign.SignificanceThis advocate for an approach based on evaluating the cerebral physiological age (« brain age ») to predict postoperative cognitive evolution. 相似文献
7.
8.
9.
Rian M. Hasson Kayla A. Fay Joseph D. Phillips Timothy M. Millington David J. Finley 《American journal of surgery》2021,221(4):725-730
BackgroundRural populations face many health disadvantages compared to urban areas. There is a critical need to better understand the current lung cancer screening landscape in these communities to identify targeted areas to improve the impact of this proven tool.MethodsData from the County Health Rankings of New Hampshire and Vermont was reviewed for population density, distribution of adult smokers, and level of education compared to the distribution of Lung Cancer Screening Facilities throughout these two states.ResultsScreening programs in southern counties of Vermont with lower levels of education have decreased access. In New Hampshire, there are no programs within 30 miles of the areas with the largest distribution of smokers, and decreased access in some areas with the lowest levels of education.ConclusionsImproving equitable access to high-quality screening services in rural regions and the creation of targeted interventions to address decreased access in areas of high tobacco use and low education is vital to decreasing the incidence of latestage presentations of lung cancer within these populations. 相似文献
10.
《The Journal of hand surgery》2020,45(2):153.e1-153.e5