全文获取类型
收费全文 | 515篇 |
免费 | 168篇 |
国内免费 | 3篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 21篇 |
妇产科学 | 57篇 |
基础医学 | 20篇 |
口腔科学 | 5篇 |
临床医学 | 227篇 |
内科学 | 115篇 |
皮肤病学 | 11篇 |
神经病学 | 17篇 |
特种医学 | 18篇 |
外科学 | 61篇 |
综合类 | 4篇 |
预防医学 | 45篇 |
眼科学 | 2篇 |
药学 | 11篇 |
肿瘤学 | 70篇 |
出版年
2024年 | 3篇 |
2023年 | 25篇 |
2022年 | 10篇 |
2021年 | 24篇 |
2020年 | 23篇 |
2019年 | 8篇 |
2018年 | 40篇 |
2017年 | 45篇 |
2016年 | 42篇 |
2015年 | 44篇 |
2014年 | 49篇 |
2013年 | 41篇 |
2012年 | 31篇 |
2011年 | 19篇 |
2010年 | 23篇 |
2009年 | 49篇 |
2008年 | 17篇 |
2007年 | 21篇 |
2006年 | 22篇 |
2005年 | 4篇 |
2004年 | 12篇 |
2003年 | 3篇 |
2002年 | 8篇 |
2001年 | 13篇 |
2000年 | 3篇 |
1999年 | 9篇 |
1998年 | 14篇 |
1997年 | 17篇 |
1996年 | 14篇 |
1995年 | 5篇 |
1994年 | 5篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1991年 | 5篇 |
1990年 | 1篇 |
1989年 | 3篇 |
1988年 | 2篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1980年 | 3篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1976年 | 4篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1970年 | 2篇 |
排序方式: 共有686条查询结果,搜索用时 15 毫秒
11.
12.
13.
14.
Journal of Neurology - 相似文献
15.
Percutaneous Excisional Biopsy of Palpable Breast Masses under Ultrasound Visualization 总被引:1,自引:0,他引:1
Hernan I. Vargas MD M. Perla Vargas MD Katherine Gonzalez RN Melissa Burla NP Iraj Khalkhali MD 《The breast journal》2006,12(S2):S218-S222
Abstract: A palpable breast mass is a common reason for surgical consultation. Our goal was to determine whether ultrasound-guided vacuum-assisted core biopsy (US-VACB) is safe and effective in completely removing presumed benign palpable breast masses. We conducted a cohort study of 201 consecutive patients with presumed benign palpable masses who underwent removal with US-VACB. The main outcome measured was the successful removal of palpable masses. Palpable masses were successfully removed with US-VACB in 99% of cases; 2% were cancer and 7.5% were atypical ductal hyperplasia or phyllodes tumor. Two clinical recurrences representing a seroma were seen on follow-up. US-VACB is safe and effective in the initial diagnosis and management of presumed benign palpable breast masses. It provides the benefits of percutaneous biopsy and the palpable abnormality no longer remains. 相似文献
16.
17.
18.
19.
M McCarthy JB Yuan A Campbell NP Lenzo K Butler‐Henderson 《Journal of Medical Imaging and Radiation Oncology》2008,52(6):564-569
18F‐fluorodeoxyglucose positron emission tomography (FDG‐PET) scans in the first 49 patients referred with either possible brain tumour or brain tumour recurrence were reviewed. FDG‐PET imaging was reported with reference to anatomical imaging. Based on the report the FDG study was classified as either positive or negative for the presence of tumour. Thirty‐eight cases were included in the analysis, 21 having pathological data and 17 with diagnostic clinical follow up. Eleven were excluded, as they had inadequate follow‐up data. Of the 21 cases with pathology, 18 were shown to have tumour. In this group there were five false‐negative scans and two false‐positive PET scans. Seventeen cases were assessed by clinical follow up, nine were considered to have been tumour. There were two false negatives with one false positive. The overall sensitivity, specificity and positive and negative predictive values were 74, 73, 87 and 53% respectively. This is similar to figures previously quoted in published work. Despite relatively limited numbers, the utility of FDG PET imaging in our hands is similar to published reports. With a positive predictive value of 87%, a positive FDG study indicates a high likelihood that there is brain tumour present. A negative study does not exclude the presence of tumour. 相似文献
20.
Richard Reid MD Katherine H. Omoto MS Sheryl L. Precop RN NP Nancy R. Berman RN CS MSN Lisa H. Rutledge BA Steven M. Dean MD Mark Pleatment MD 《American journal of obstetrics and gynecology》1995,172(6):1684-1701
Objective: The management of chronic vulvovaginal pain, not explicable on specific histologic grounds, presents a major problem in referral centers for lower genital tract diseases.Study design: This article reports on a two-step protocol in a sample of 175 medical nonresponders, drawn from a 2-year cohort of 725 women with vulvovaginal pain. The first maneuver was the use of a flashlamp-excited dye laser to selectively photocoagulate symptomatic subepithelial blood vessels in 168 women; the second was the microsurgical removal of chronically painful Bartholin's glands in 52 women not responsive or not suited to flashlamp-excited dye laser photothermolysis.Results: Dye laser response rates werer independent of whether patients manifested macroscopic focl of painful erythema (“vestibular adenitis”) or just colposcopically apparent hyperemia-ectasia of the individual blood vessels (“pruritic papillomatosis”) (55% vs 45% after a single surgical procedure; 76% vs 65% after serial retreatment; p not significant). Conversely, response rates were much lower among women in whom pressure on the Bartholin's glands produced sharp, lancinating pain (15% vs 66% after a single surgical procedure; 22% vs 93% after serial retreatment; p < 0.001). Forty-two (85%) of 50 patients with flashlamp-excited dye laser failure had deep pain; however, the impasse to progress was broken by gland removal. Final response rates were 92.5% (complete response 62%; partial response 30%) in the “surface-only” group and 80.3% in the “surface-plus-deep” group (χ2 = 14.9; p < 0.001). The major complication was acute bacterial cellulitis, occurring in the first postoperative week. Modification of the treatment protocol to include topical antibiotics with an occlusive dressing reduced the cellulitis rate from 17.2% to 2.5%. In four women (1.8%) Koebner-like exophytic condylomas also developed within 1 month of flashlamp-excited dye laser surgery.Conclusion: The availability of a safe, efficacious, and relatively noninvasive treatment should reduce the need for resective surgery in most patients with idiopathic vulvodynia. 1995; 172; 1684–1701.) 相似文献