全文获取类型
收费全文 | 110685篇 |
免费 | 7877篇 |
国内免费 | 2071篇 |
专业分类
耳鼻咽喉 | 779篇 |
儿科学 | 2777篇 |
妇产科学 | 1309篇 |
基础医学 | 5142篇 |
口腔科学 | 4538篇 |
临床医学 | 11112篇 |
内科学 | 11737篇 |
皮肤病学 | 1538篇 |
神经病学 | 12204篇 |
特种医学 | 3823篇 |
外国民族医学 | 21篇 |
外科学 | 10230篇 |
综合类 | 19918篇 |
现状与发展 | 8篇 |
一般理论 | 4篇 |
预防医学 | 6970篇 |
眼科学 | 1538篇 |
药学 | 10456篇 |
179篇 | |
中国医学 | 10435篇 |
肿瘤学 | 5915篇 |
出版年
2024年 | 335篇 |
2023年 | 1539篇 |
2022年 | 2990篇 |
2021年 | 4042篇 |
2020年 | 4274篇 |
2019年 | 3262篇 |
2018年 | 3123篇 |
2017年 | 3573篇 |
2016年 | 4034篇 |
2015年 | 3708篇 |
2014年 | 7369篇 |
2013年 | 9631篇 |
2012年 | 7351篇 |
2011年 | 7590篇 |
2010年 | 6462篇 |
2009年 | 5668篇 |
2008年 | 5182篇 |
2007年 | 5412篇 |
2006年 | 4848篇 |
2005年 | 4142篇 |
2004年 | 3544篇 |
2003年 | 3066篇 |
2002年 | 2698篇 |
2001年 | 2276篇 |
2000年 | 1956篇 |
1999年 | 1619篇 |
1998年 | 1270篇 |
1997年 | 1191篇 |
1996年 | 972篇 |
1995年 | 875篇 |
1994年 | 780篇 |
1993年 | 666篇 |
1992年 | 596篇 |
1991年 | 523篇 |
1990年 | 413篇 |
1989年 | 399篇 |
1988年 | 362篇 |
1987年 | 348篇 |
1986年 | 287篇 |
1985年 | 400篇 |
1984年 | 286篇 |
1983年 | 192篇 |
1982年 | 252篇 |
1981年 | 191篇 |
1980年 | 196篇 |
1979年 | 166篇 |
1978年 | 111篇 |
1977年 | 114篇 |
1976年 | 91篇 |
1973年 | 48篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
Outcome of conservative treatment of primary vesicoureteral reflux in 87 Thai children in a single center 总被引:1,自引:0,他引:1
PRAYONG VACHVANICHSANONG PORNSAK DISSANEEWATE APIRADEE LIM ALAN GEATER 《International journal of urology》2006,13(11):1393-1397
AIM: To evaluate the outcome of primary vesicoureteral reflux (VUR) using conservative treatment. METHODS: Eighty-seven children with primary VUR who had been treated with a conservative medical regimen and monitored through a yearly cystogram were recruited for the study. The study was conducted at the Pediatric Nephrology Clinic in Songklanagarind Hospital, the major tertiary care center in southern Thailand. Statistical analyses using Kaplan-Meier survival curves, chi-squared test, Fisher's exact test and multivariate analysis with Cox regression were performed. RESULTS: The study group consisted of 41 boys and 46 girls, with a total of 133 VUR. The age of the boys was significantly lower than that of the girls (P < 0.001). Resolution of the low grades (grades I-III) of VUR was significantly more frequent than that of the high grades (grades IV-V) (68/95, 72%vs 14/38, 37%; P < 0.001). Using the Kaplan-Meier survival analysis and log-rank test, the resolutions of VUR in boys versus girls, and age <1 years versus >or=1 years were not significantly different (P = 0.2252 and 0.4756, respectively). Low-grade VUR and unilateral VUR had significantly higher probabilities of resolution than high-grade VUR and bilateral VUR, respectively (P = 0.0041 and 0.0467, respectively). Multivariate Cox regression analysis indicated that among low-grade VUR, boys and unilateral VUR had significantly higher probabilities of resolution. Among the high-grade VUR, neither sex nor laterality had a significant effect on the probabilities of VUR resolution. CONCLUSION: This study offers more evidence that children with low-grade VUR have a higher chance of reflux resolution if they are boys and have only unilateral VUR. There is still no good guide for resolution of reflux in children with high-grade VUR. 相似文献
92.
目的:观察针药结合治疗假性延髓麻痹的疗效。方法:采用完全随机抽样法分为针刺组50例,对照组48例。针刺组在西医治疗的同时,应用针刺进行综合治疗;对照组单纯接受西医药物治疗。结果:针刺组有效率为92.0%,对照组为62.5%。两组疗效差异具有非常显著性意义(P〈0.01)。结论:针药结合治疗假性延髓麻痹效果明显优于单纯西药治疗。 相似文献
93.
原发性肾上腺皮质癌的诊治分析 总被引:1,自引:0,他引:1
目的总结和提高原发性肾上腺皮质癌的诊治水平。方法回顾分析16例肾上腺皮质癌患者的临床资料。根据其临床症状、内分泌功能测定、影像学特点做出诊断,手术治疗并随访。结果16例患者中,内分泌功能紊乱者8例,以库欣征、性征异常、醛固酮增多症为主。超声、CT、MRI测定肿瘤直径为4.8~19.5cm,平均7.8cm。3例有远处转移。行根治性切除术13例,侵及同侧肾脏者做肾和肾上腙切除术2例,肾上腺肿瘤并腔静脉癌栓切除2例,腔静脉部分切除1例。病理结果:Ⅰ其耳2例,Ⅱ期8例,Ⅲ期3例,Ⅳ期3例。随访3-62个月,手术2年以上的11例患者中有6例仍存活,但1例肺转移,1例骨转移;死亡5例,平均存活26个月。结论肾上腺皮质癌患者预后差。影像学检查结合临床症状是早期诊断的关键,根治性手术是惟一有效的治疗方法。 相似文献
94.
Michiel R. de Boer Jos Twisk Annette C. Moll Hennie J. M. Völker-Dieben Henrica C. W. de Vet Ger H. M. B. van Rens 《Ophthalmic & physiological optics》2006,26(6):535-544
Consecutive patients (n = 215) who were referred to optometric (55%) or multidisciplinary (45%) low-vision services and above 50 years of age were recruited from four hospitals in the Netherlands. They completed two vision-related quality of life questionnaires, the Vision Quality of Life Core Measure (VCM1) and the Low Vision Quality of Life Questionnaire (LVQOL), before their first visit with low-vision services and 1 year later. At follow-up, patients referred to multidisciplinary low-vision services had lower scores on the mobility subscale of the LVQOL than patients referred to optometric low-vision services [5.3 points; 95% confidence interval (CI): 0.2-10.5]. Paired sample t-tests for the two groups of patients taken together show improvement for the VCM1 (3.1 points; 95% CI: 0.6-5.6) and deterioration for the basic aspects of vision (3.5 points; 95% CI: 1.1-5.9) and the mobility (6.6 points; 95% CI: 3.7-9.5) subscales of the LVQOL. In conclusion, people referred to optometric services showed less deterioration in mobility than those referred to multidisciplinary services. No differences were observed for any of the other subscales of the LVQOL and the VCM1. Future research in this field should include randomized controlled designs comparing low-vision services with no treatment or placebo. 相似文献
95.
目的 探讨数字减影血管造影(DSA)诊断与介入治疗在胃肠道动脉性出血中的应用价值.方法 回顾性总结78例消化道动脉性出血患者的DSA表现和动脉栓塞、药物灌注的治疗经验.结果 本组患者十二指肠溃疡15例,胃溃疡5例,胃癌2例,Dieulafoy病1例,血管畸形和发育不良9例,胃肠术后吻合口出血8例,肝胆疾患术后肝动脉破裂出血10例,Crohn病5例、肠道憩室出血6例、小肠炎或溃疡6例,小肠息肉3例,小肠中度恶性间质瘤1例,小肠高分化平滑肌肉瘤2例,直结肠癌5例.74%(58/78)的患者DSA造影阳性,造影剂外溢直接征象者33%(26/78),术后吻合口出血直接征象者83%(15/18).介入治疗的病例中动脉药物灌注15例,技术成功率60%(9/15),临床成功率40%(6/15);栓塞36例,技术成功率86%(31/36),临床成功率72%(26/36);介人治疗后再出血率16%(8/51),其中1例栓塞后再呕血经胃镜治疗无效死亡.DSA造影和介入治疗后手术者27例,造影与术后病理诊断的符合率为78%(21/27).随访时间2个月至3年,未发生胃肠道缺血坏死等并发症.结论 DSA对消化道动脉性出血的定位、定性有着重要价值,选择性动脉栓塞及药物灌注止血安全有效,有助于择期手术和并发症处理. 相似文献
96.
目的 探讨创伤性、迟发性颅内血肿的早期诊断和治疗的临床效果。方法 对22例病人的发病年龄、性别、伤因、早期诊断和治疗效果进行了回顾性分析。经过2—6个月,按GOS评定治疗效果。结果 良好者12例,中残者5例,重残者1例,植物生存者1例,死亡者3例,死亡率为14%。结论 早期诊断和治疗本病对于提高治愈率和降低死亡率至关重要,早期手术治疗本病,乃是多数病人首选的治疗方法。 相似文献
97.
减少急诊医疗纠纷实行全程无缝隙优质服务 总被引:1,自引:0,他引:1
目的防范医疗纠纷,提供“全程无缝隙优质服务”,以提高急诊护理急救服务质量。方法对急诊33 700例急症病人采用热情接诊、主动护送(护送病人检查和转入病区)、细心观察、真实记录、送走道别等服务措施。结果共紧急护送急症患者33 700例(100%);在护送过程中发生病情变化者117例(0.35%),经急救处理全部脱险;医疗纠纷发生率为0。结论采用“全程无缝隙优质服务”,可减少急诊科医疗纠纷的发生,提高医疗质量。 相似文献
98.
M. Naumann A. Albanese F. Heinen G. Molenaers M. Relja 《European journal of neurology》2006,13(S4):35-40
Botulinum toxin serotype A (BoNT-A) has long heritage of use leading to confidence in its safety and efficacy. The application of BoNT-A does not lead to persistent histological changes in the nerve terminal or the target muscle. Clinical trials defined the safety and tolerability profile of BoNT-A across common therapeutic indications and showed an incidence of adverse events of approximately 25% in the BoNT-A-treated group compared with 15% in the control group. Focal weakness was the only adverse event to occur more often following BoNT-A treatment. Long-term BoNT-A administration has been assessed in various treatment settings, with the level and duration of BoNT-A efficacy response being maintained over repeated rounds of injection with no major safety concerns. The treatment of children with cerebral palsy often require long-term, repeated, multimuscle BoNT-A injections that lead to the administration of comparably higher toxin doses. Despite the high total body doses used, their distribution over multiple muscles and injection sites means that systemic side effects are rare. Recent formulation changes have reduced the incidence of antibody development following treatment with BOTOX® . These findings show long-term BoNT-A treatment to be both safe and efficacious for a wide variety of indications. 相似文献
99.
目的:探讨生化修饰疗法对晚期恶性肿瘤病人的治疗效果。方法:对57例晚期恶性肿瘤病人采用置管经输注泵输注化疗药物治疗与护理。结果:此法较全身化疗疗效高,毒副作用小。尤其适用于一般状况差又难于耐受全身化疗的晚期消化系统恶性肿瘤病人。结论:生化修饰疗法安全、有效、方便、费用低,值得推广。 相似文献
100.
目的 :通过对平阳霉素术前化疗效果的相关因素分析 ,早期判断平阳霉素对口腔鳞癌的效果 ,为确定进一步治疗方案提供指导。方法 :对本院近 3年来接受平阳霉素 (总量为 80mg)化疗的 4 3例口腔癌患者进行直线相关和回归分析 ,观察化疗期间体温改变、发热持续时间、胃肠道反应时间及WBC改变与疗效的关系。结果 :①接受平阳霉素化疗有效的患者多在第 3~ 6天出现局部反应 ;②发热的程度及胃肠道反应与化疗效果密切相关 (P<0 .0 5 )。结论 :化疗早期出现的发热、胃肠道症状及局部反应可以作为早期判断预期疗效的方法。 相似文献