全文获取类型
收费全文 | 3289篇 |
免费 | 185篇 |
国内免费 | 28篇 |
专业分类
耳鼻咽喉 | 12篇 |
儿科学 | 171篇 |
妇产科学 | 81篇 |
基础医学 | 285篇 |
口腔科学 | 144篇 |
临床医学 | 219篇 |
内科学 | 665篇 |
皮肤病学 | 171篇 |
神经病学 | 117篇 |
特种医学 | 150篇 |
外科学 | 411篇 |
综合类 | 95篇 |
一般理论 | 2篇 |
预防医学 | 132篇 |
眼科学 | 261篇 |
药学 | 384篇 |
1篇 | |
中国医学 | 12篇 |
肿瘤学 | 189篇 |
出版年
2023年 | 12篇 |
2022年 | 48篇 |
2021年 | 100篇 |
2020年 | 54篇 |
2019年 | 73篇 |
2018年 | 97篇 |
2017年 | 60篇 |
2016年 | 83篇 |
2015年 | 84篇 |
2014年 | 119篇 |
2013年 | 179篇 |
2012年 | 235篇 |
2011年 | 211篇 |
2010年 | 165篇 |
2009年 | 148篇 |
2008年 | 190篇 |
2007年 | 236篇 |
2006年 | 192篇 |
2005年 | 176篇 |
2004年 | 156篇 |
2003年 | 106篇 |
2002年 | 136篇 |
2001年 | 55篇 |
2000年 | 34篇 |
1999年 | 43篇 |
1998年 | 58篇 |
1997年 | 46篇 |
1996年 | 53篇 |
1995年 | 33篇 |
1994年 | 19篇 |
1993年 | 30篇 |
1992年 | 18篇 |
1991年 | 14篇 |
1990年 | 18篇 |
1989年 | 32篇 |
1988年 | 22篇 |
1987年 | 28篇 |
1986年 | 14篇 |
1985年 | 25篇 |
1984年 | 15篇 |
1983年 | 10篇 |
1982年 | 9篇 |
1981年 | 5篇 |
1980年 | 13篇 |
1979年 | 5篇 |
1978年 | 4篇 |
1977年 | 5篇 |
1976年 | 7篇 |
1975年 | 7篇 |
1973年 | 9篇 |
排序方式: 共有3502条查询结果,搜索用时 656 毫秒
11.
12.
K. L. Womer H.-U. Meier-Kriesche P. R. Patton K. Dibadj C. M. Bucci D. Foley S. Fujita B. P. Croker R. J. Howard T. R. Srinivas B. Kaplan 《American journal of transplantation》2006,6(1):209-213
BK virus nephropathy (BKVN) is now recognized as a major cause of renal allograft loss. Recent reports suggest that retransplantation in patients with graft loss due to BKVN is safe after return to dialysis. Since early transplantation is associated with improved outcomes, it would be advantageous if this procedure could be performed prior to ultimate graft loss. However, little data are available regarding the safety of this approach during active viremia. In this report, we describe successful preemptive retransplantation with simultaneous allograft nephrectomy in two patients with active BKVN and viremia at the time of surgery. With 21- and 12-month follow-up, respectively, both patients have stable allograft function and no evidence for active viral replication. We conclude that preemptive retransplantation can be considered in patients with failing allografts due to BKVN. 相似文献
13.
R. Srinivas Reddy S. Bajaj A. R. Tolat J. Compson 《European journal of orthopaedic surgery & traumatology : orthopedie traumatologie》2007,17(4):373-376
Neurofibromas in the hand are uncommon and constitute less than 5% of all hand tumours. Accurate diagnosis and appropriate management are important because malignant transformation has been reported, especially in Von Recklinghausen’s neurofibromatosis. We report a case of a large neurofibroma in the right hand of an 18-year-old girl of Afro-Caribbean origin. She was symptomatic with complaints of pain and weakness of grip. General examination revealed multiple café-au-lait spots on the trunk and one nodular swelling in the forearm. The swelling was excised through a palmar approach and histology proved it to be a neurofibroma. The case is being reported for its rarity and it emphasizes the importance of general examination. Histopathological examination is vital in excluding malignant transformation. 相似文献
14.
Use of fluorometry in assessing the efficacy of a cation-sensitive gel as an ophthalmic vehicle: comparison with scintigraphy. 总被引:1,自引:0,他引:1
Gelrite, a heteropolysaccharide that forms a gel in the presence of cations, was tested in humans for its efficacy as an ophthalmic vehicle by a nonivasive fluorometric technique. Fluorescein was used as the tracer, and its concentration in the anterior chamber was used as the principal measure of bioavailability. The gel afforded a twofold increase in penetration of fluorescein compared with an isotonic buffer solution; this increase is slightly more than can be obtained with simple viscous vehicles. The increase in penetration caused by Gelrite was confirmed by measurements of the contact time of fluorescein in the tear film with the cornea. Earlier experiments with scintigraphy suggested a considerably greater contact time of fluorescein with the cornea when Gelrite was used. However, this increased contact time may be because the technique also measures radioactive tracer that had dried out on the lid margins. Accordingly, significant quantities of fluorescein could be eluted from the lids after the penetration experiments were completed. 相似文献
15.
Genotype-phenotype correlation for nucleotide substitutions in the IgII- IgIII linker of FGFR2 总被引:6,自引:3,他引:3
16.
17.
Hari Shankar Sharma N. K. Majumder V. Srinivas S. Gopalakrishnan 《Indian journal of otolaryngology and head and neck surgery》1988,40(3):105-106
Rarity of the carcinoid tumours in the larynx prompted us to report this case which has been successfully treated by partial laryngectomy. Oncogenesis of these tumours, mode of treatment and prognosis have been discussed. 相似文献
18.
Diethylcarbamazine in bronchial asthma 总被引:1,自引:0,他引:1
19.
20.
Localization of a gene for otosclerosis to chromosome 15q25-q26 总被引:5,自引:0,他引:5
Tomek MS; Brown MR; Mani SR; Ramesh A; Srisailapathy CR; Coucke P; Zbar RI; Bell AM; McGuirt WT; Fukushima K; Willems PJ; Van Camp G; Smith RJ 《Human molecular genetics》1998,7(2):285-290
Among white adults otosclerosis is the single most common cause of hearing
impairment. Although the genetics of this disease are controversial, the
majority of studies indicate autosomal dominant inheritance with reduced
penetrance. We studied a large multi- generational family in which
otosclerosis has been inherited in an autosomal dominant pattern. Five of16
affected persons have surgically confirmed otosclerosis; the remaining nine
have a conductive hearing loss but have not undergone corrective surgery.
To locate the disease- causing gene we completed genetic linkage analysis
using short tandem repeat polymorphisms (STRPs) distributed over the entire
genome. Multipoint linkage analysis showed that only one genomic region, on
chromosome 15q, generated a lod score >2.0. Additional STRPs were typed
in this area, resulting in a lod score of 3.4. STRPs FES (centromeric) and
D15S657 (telomeric) flank the 14. 5 cM region that contains an otosclerosis
gene.
相似文献