全文获取类型
收费全文 | 2106篇 |
免费 | 239篇 |
国内免费 | 19篇 |
专业分类
耳鼻咽喉 | 26篇 |
儿科学 | 134篇 |
妇产科学 | 25篇 |
基础医学 | 226篇 |
口腔科学 | 153篇 |
临床医学 | 308篇 |
内科学 | 505篇 |
皮肤病学 | 12篇 |
神经病学 | 187篇 |
特种医学 | 171篇 |
外科学 | 249篇 |
综合类 | 99篇 |
一般理论 | 1篇 |
预防医学 | 119篇 |
眼科学 | 9篇 |
药学 | 71篇 |
中国医学 | 5篇 |
肿瘤学 | 64篇 |
出版年
2022年 | 13篇 |
2021年 | 32篇 |
2020年 | 16篇 |
2019年 | 23篇 |
2018年 | 58篇 |
2017年 | 60篇 |
2016年 | 64篇 |
2015年 | 50篇 |
2014年 | 79篇 |
2013年 | 105篇 |
2012年 | 92篇 |
2011年 | 83篇 |
2010年 | 94篇 |
2009年 | 81篇 |
2008年 | 86篇 |
2007年 | 90篇 |
2006年 | 78篇 |
2005年 | 60篇 |
2004年 | 69篇 |
2003年 | 61篇 |
2002年 | 63篇 |
2001年 | 55篇 |
2000年 | 47篇 |
1999年 | 36篇 |
1998年 | 71篇 |
1997年 | 70篇 |
1996年 | 66篇 |
1995年 | 58篇 |
1994年 | 37篇 |
1993年 | 47篇 |
1992年 | 41篇 |
1991年 | 35篇 |
1990年 | 42篇 |
1989年 | 28篇 |
1988年 | 47篇 |
1987年 | 46篇 |
1986年 | 31篇 |
1985年 | 16篇 |
1984年 | 25篇 |
1983年 | 20篇 |
1981年 | 18篇 |
1980年 | 12篇 |
1978年 | 12篇 |
1977年 | 16篇 |
1976年 | 17篇 |
1974年 | 10篇 |
1972年 | 9篇 |
1971年 | 10篇 |
1967年 | 9篇 |
1966年 | 11篇 |
排序方式: 共有2364条查询结果,搜索用时 18 毫秒
1.
2.
T L Gentles P M Clarkson A A Trenholme D R Lennon J M Neutze 《The New Zealand medical journal》1990,103(896):389-391
Records of 34 children diagnosed as having Kawasaki disease in the Auckland region from 1979 to 1988 inclusive were reviewed. Diagnostic and associated features were similar to those reported from North America and Japan. The incidence (average 5.1 per year per 100,000 less than 5 years of age) was similar to that reported in Europe and North America amongst nonorientals and was similar in Polynesians and nonPolynesians. Coronary artery abnormalities were found in five cases (15%), and two cases, both of whom presented before five months of age, died. Those with abnormal coronary arteries had fever for a significantly longer period than those with normal coronary arteries. 相似文献
3.
Benign intracranial hypertension and recombinant growth hormone therapy in Australia and New Zealand
PA Crock JD McKenzie AM Nicoll NJ Howard W Cutfield LK Shield G Byrne 《Acta paediatrica (Oslo, Norway : 1992)》1998,87(4):381-386
Benign intracranial hypertension (BIH) is reported in three children from Australia and one from New Zealand, who were being treated with recombinant human growth hormone (rhGH). Three males and one female, aged between 10.5 and 14.2 y, developed intracranial hypertension within 2 weeks to 3 months of starting treatment. A national database, OZGROW, has been prospectively collecting data on all 3332 children treated with rhGH in Australia and New Zealand from January 1986 to 1996. The incidence of BIH in children treated with growth hormone (GH) is small, 1.2 per 1000 cases overall, but appears to be greater with biochemical GHD (<10IUml -1 ), i.e. 6.5/1000 (3 in 465 cases), relative risk 18.4, 95% confidence interval 1.9-176.1, than in all other children on the database. The incidence in patients with Turner's syndrome was 2.3/1000 (1 in 428 cases). No cases in patients with partial GHD (10–20 IUml -1 ) or chronic renal failure were identified. Possible causative mechanisms are discussed. The authors'practice is now to start GH replacement at less than the usual recommended dose of 14IUm-2 week-1 in those children considered to be at high risk of developing BIH. Ophthalmological evaluation is recommended for children before and during the first few months following commencement of rhGH therapy and is mandatory in the event of peripheral or facial oedema, persistent headaches, vomiting or visual symptoms. The absence of papilledema does not exclude the diagnosis. 相似文献
4.
5.
D L Lennon E R Shrago M Madden F J Nagle P Hanson 《The American journal of clinical nutrition》1986,43(2):234-238
The purpose of this investigation was to determine if there was any relationship between dietary carnitine intake and the concentrations of carnitine in skeletal muscle and blood plasma in healthy adult men and women. Subjects (14 men, 14 women, fasted 8 h) reported to the Biodynamics Laboratory where they completed a 24-h diet recall questionnaire. Resting muscle biopsy (vastus lateralis) and blood plasma samples were taken and assayed for free, short-chain, and long-chain acyl carnitine concentrations. Dietary carnitine intake was estimated from data on concentrations in food. There was no significant relationship between either protein or carnitine intake with skeletal muscle carnitine concentrations. There was a significant relationship between both dietary carnitine (r = 0.50) and protein (r = 0.48) intake with blood plasma total acid soluble carnitine concentrations (p less than 0.01) in all subjects. 相似文献
6.
7.
Ali Samii Debra D Dahlen Alexander M Spence Nicole C Maronian Eric E Kraus Vanda A Lennon 《Movement disorders》2003,18(12):1556-1558
The paraneoplastic autoantibody, collapsin response-mediator protein (CRMP)-5 immunoglobulin G (IgG), is specific for neuronal cytoplasmic CRMP-5, and is usually associated with small-cell lung carcinoma or thymoma. We report on details of a movement disorder that followed anti-B-cell therapy in a patient with lymphoma, and was accompanied by CRMP-5 IgG. 相似文献
8.
9.
R Mokni A Chakar F Bleiberg-Daniel JL Mahu PA Walravens P Chappuis J Navarro D Lemonnier 《Acta paediatrica (Oslo, Norway : 1992)》1993,82(6-7):539-543
Biochemical markers of nutritional status (albumin, transthyretin, insulin-like growth factor-I and zinc) were measured in slowly growing two- to five-year-old, low-income Parisian children whose weight-for-height or height-for-age z scores (WHZ or HAZ) were between — 1 and — 2 SD of the NCHS median. The results were compared to controls who were matched for age, sex, and ethnic origin with WHZ and HAZ between — 1 and + 2 SD. Mean serum levels of transthyretin, albumin and insulin-like growth factor-I and mean plasma zinc concentrations were significantly lower in the growth-impaired children than in the controls ( p = 0.002, p = 0.006, p = 0.015, and p = 0.035, respectively). While the height-retarded children had low mean serum insulin-like growth factor-I values, the weight-retarded subjects had decreased levels of albumin, transthyretin and zinc when compared to controls. Lower mean levels of nutritional markers in healthy, slowly growing children suggest that inadequate dietary intakes of zinc, protein and/or energy may result in marginal delays in weight and height gains. 相似文献
10.
Pied S; Voegtle D; Marussig M; Renia L; Miltgen F; Mazier D; Cazenave PA 《International immunology》1997,9(1):17-25
TCR V beta usage was examined in C57BL/6 mice infected with Plasmodium
yoelii. In addition to a polyclonal T cell activation, already described, a
superantigenic-like activity was observed during the acute infection. This
superantigenic activity induces a preferential deletion without prior
expansion of CD4+ and CD8+ T cells bearing the TCR V beta 9 segment. The
superantigen could be released by the parasite at different stages of its
development since the deletion of V beta 9+ T cells was observed in blood
and lymph nodes of mice infected either with sporozoites or with
erythrocytic stages. Injection of sporozoite or parasitized erythrocytes to
newborn mice led to a deletion and anergy of peripheral V beta 9+ T cells,
without affecting thymic T cell populations. These observations suggest
that the superantigen is released at very low concentrations during
parasite development. The role of such parasite superantigenic activity in
infectivity can be underlined by the observation that congenic BALB.D2
Mis1a mice lacking V beta 9 T cells are more susceptible to infection by P.
yoelii.
相似文献