全文获取类型
收费全文 | 46327篇 |
免费 | 3317篇 |
国内免费 | 2270篇 |
专业分类
耳鼻咽喉 | 1545篇 |
儿科学 | 522篇 |
妇产科学 | 194篇 |
基础医学 | 6141篇 |
口腔科学 | 1070篇 |
临床医学 | 4553篇 |
内科学 | 4049篇 |
皮肤病学 | 250篇 |
神经病学 | 9159篇 |
特种医学 | 1444篇 |
外国民族医学 | 3篇 |
外科学 | 8283篇 |
综合类 | 6326篇 |
预防医学 | 935篇 |
眼科学 | 2639篇 |
药学 | 2580篇 |
22篇 | |
中国医学 | 1269篇 |
肿瘤学 | 930篇 |
出版年
2024年 | 53篇 |
2023年 | 707篇 |
2022年 | 1011篇 |
2021年 | 1627篇 |
2020年 | 1673篇 |
2019年 | 1479篇 |
2018年 | 1441篇 |
2017年 | 1647篇 |
2016年 | 1634篇 |
2015年 | 1577篇 |
2014年 | 2770篇 |
2013年 | 2792篇 |
2012年 | 2294篇 |
2011年 | 2543篇 |
2010年 | 2172篇 |
2009年 | 2097篇 |
2008年 | 2272篇 |
2007年 | 2289篇 |
2006年 | 2038篇 |
2005年 | 1763篇 |
2004年 | 1669篇 |
2003年 | 1450篇 |
2002年 | 1265篇 |
2001年 | 1132篇 |
2000年 | 942篇 |
1999年 | 888篇 |
1998年 | 846篇 |
1997年 | 793篇 |
1996年 | 540篇 |
1995年 | 593篇 |
1994年 | 515篇 |
1993年 | 486篇 |
1992年 | 527篇 |
1991年 | 430篇 |
1990年 | 425篇 |
1989年 | 354篇 |
1988年 | 307篇 |
1987年 | 310篇 |
1986年 | 304篇 |
1985年 | 391篇 |
1984年 | 343篇 |
1983年 | 225篇 |
1982年 | 264篇 |
1981年 | 227篇 |
1980年 | 205篇 |
1979年 | 140篇 |
1978年 | 97篇 |
1977年 | 96篇 |
1976年 | 72篇 |
1975年 | 49篇 |
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
1.
2.
3.
4.
5.
目的:观察川芎茶调散加减方联合针灸治疗周围性面神经麻痹(风寒证)的临床效果。方法:选取2018年2月至2019年2月威海市中医院收治的急性周围性面瘫患者108例作为研究对象,按照随机数字表法分为对照组与观察组,每组54例。对照组给予常规西药治疗,观察组给予川芎茶调散加减方口服联合针灸治疗。比较2组患者主要症状的改善时间、肌电图检查相关指标、面部神经功能分级的变化,测定血清中相关因子水平,比较临床效果。结果:观察组、对照组的有效率92.59%、75.93%,以观察组临床效果更好(P0.05);观察组患者治疗后的闭目、抬眉、鼓颊的改善时间明显短于对照组(P0.05);观察组患者的肌电图结果RI潜伏期低于对照组,CMAP波幅高于对照组,面部神经功能分级改善更明显(P0.05);观察组患者血清中TNF-α、IL-17含量明显低于对照组,GDNF含量显著高于对照组(P0.05)。结论:川芎茶调散加减方联合针灸利于促进患者临床症状的缓解,改善肌电图指标,促进面部神经功能的恢复,推断其起效可能与通过调控血清中TNF-α、GDNF、IL-17等水平以减轻患者神经病变的炎性反应损伤程度有关。 相似文献
6.
《Revista brasileira de otorrinolaringologia (English ed.)》2015,81(3):264-269
IntroductionThere is still no consensus in the literature as to the best acoustic stimulus for capturing vestibular evoked myogenic potential (VEMP). Low-frequency tone bursts are generally more effective than high-frequency, but recent studies still use clicks. Reproducibility is an important analytical parameter to observe the reliability of responses.ObjectiveTo determine the reproducibility of p13 and n23 latency and amplitude of the VEMP for stimuli with different tone-burst frequencies, and to define the best test frequency.MethodsCross-sectional cohort study. VEMP was captured in 156 ears, on the sternocleidomastoid muscle, using 100 tone-burst stimuli at frequencies of 250, 500, 1000, and 2000 Hz, and sound intensity of 95 dB nHL. Responses were replicated, that is, recorded three times on each side.ResultsNo significant difference was observed for p13 and n23 latencies of the VEMP, captured at three moments with tone-burst stimuli at 250, 500, and 1000 Hz. Only the frequency of 2000 Hz showed a difference between captures of this potential (p < 0.001). p13 and n23 amplitude analysis was also similar in the test–retest for all frequencies analyzed.Conclusionp13 and n23 latencies and amplitudes of VEMP for tone-burst stimuli at frequencies of 250, 500, and 1000 Hz are reproducible. 相似文献
7.
8.
9.
10.
Objective: To observe the clinical effect of modified akupotomye closed lysis under CT guidance on compression of posterior lumbar nerve branch.Methods: Patients were diagnosed by HRCT 3-D reconstruction combined with clinical symptoms and signs.After HRCT three-dimensional reconstruction combined with clinical symptoms and signs, the patients were confirmed as posterior lumbar nerve compression.After CT accurate surface positioning, CT-guided modified akupotomye was used for closed lysis of the posterior lumbar nerve branch.Oswestry Dysfunction Index Questionnaire(ODI) was used for quantitative scoring, 7 days before and after treatment and 6 months after treatment.Results: In 62 cases, 20 cases were cured, with 25 cases markedly effective, 11 cases effective, and 36 cases ineffective.The total effective rate was 90.3%.ODI score: Self-paired t test 7 days before after treatment, P < 0.01;Before treatment and 6 months after treatment, self-paired t test(P < 0.01);Self-paired t-test was performed 7 days after treatment and 6 months after treatment(P > 0.05).Conclusion: With CT precise positioning, the modified akupotomye can be used to do closed lysis, to relieve the adhesion and compression, so that the low back pain can be relieved, with good clinical.The akupotomye closed lysis, combined with modern imaging technology has not only achieved good clinical effect, but also can improve the accuracy, safety and scientificity of akupotomye treatment. 相似文献