期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

全文获取类型

收费全文	2372923篇
免费	158627篇
国内免费	3260篇

专业分类

耳鼻咽喉	32321篇
儿科学	76048篇
妇产科学	62817篇
基础医学	349098篇
口腔科学	63791篇
临床医学	212585篇
内科学	459411篇
皮肤病学	51806篇
神经病学	186197篇
特种医学	88294篇
外国民族医学	490篇
外科学	355113篇
综合类	47614篇
现状与发展	12篇
一般理论	853篇
预防医学	183421篇
眼科学	54583篇
药学	175739篇
	58篇
中国医学	4586篇
肿瘤学	129973篇

出版年

2021年	19517篇
2019年	20430篇
2018年	27353篇
2017年	20570篇
2016年	22976篇
2015年	25804篇
2014年	36318篇
2013年	54230篇
2012年	75060篇
2011年	79838篇
2010年	47292篇
2009年	44774篇
2008年	74927篇
2007年	79826篇
2006年	80593篇
2005年	78063篇
2004年	74656篇
2003年	71950篇
2002年	69603篇
2001年	108814篇
2000年	111505篇
1999年	93555篇
1998年	27047篇
1997年	23697篇
1996年	24105篇
1995年	22754篇
1994年	20927篇
1993年	19736篇
1992年	72049篇
1991年	70107篇
1990年	68425篇
1989年	65692篇
1988年	60331篇
1987年	59152篇
1986年	55247篇
1985年	53013篇
1984年	39332篇
1983年	33405篇
1982年	19866篇
1979年	35876篇
1978年	25661篇
1977年	21236篇
1976年	20339篇
1975年	21825篇
1974年	26155篇
1973年	24810篇
1972年	23210篇
1971年	22050篇
1970年	20260篇
1969年	19329篇

排序方式： 共有10000条查询结果，搜索用时 31 毫秒

[首页] « 上一页 [3] [4] [5] [6] [7] 8 [9] [10] [11] [12] [13] 下一页 » 末页»

71.

Differentiated Thyroid Cancer in Children: A UK Multicentre Review and Review of the Literature

K.A. Lee M.T.A. Sharabiani D. Tumino J. Wadsley V. Gill G. Gerrard R. Sindhu M.N. Gaze L. Moss K. Newbold 《Clinical oncology (Royal College of Radiologists (Great Britain))》2019,31(6):385-390

Aims

To obtain an overview of the management and outcomes of children aged 18 years or younger diagnosed with differentiated thyroid carcinoma of follicular cell origin across the UK, by collecting and analysing data from the limited number of centres treating these patients. This multicentre data might provide a more realistic perspective than single-institution series.

Materials and methods

Six centres submitted data extracted from historical records on patients aged 18 years or younger, diagnosed between 1964 and 2017. The univariate and multivariable Cox proportional hazard model was used to identify potential predictors of progression-free survival, using national data as a control.

Results

Data on 166 patients were available for analysis. Females (74%) were predominant, and the age ranged from 3 to 19 years at diagnosis, mean 14.1 years. Nodal metastases were present in 51%; 12% had distant metastases. After surgery, 95% received radioactive iodine (39% on more than one occasion) and 4% received external beam radiotherapy. With a median follow-up duration of 5 years, 69% are alive with no evidence of disease; 20% are alive with a raised thyroglobulin level as the only evidence of residual disease; 6% have residual structural disease detectable on imaging; 2% have died, from cerebral metastases.

Conclusion

Despite most patients having advanced disease at presentation, outcomes are very good. A national prospective registry should allow systematic collection of good-quality data and may facilitate research to further improve outcomes. 相似文献

72.

Prediction modelling using routine clinical parameters to stratify survival in Malignant Pleural Mesothelioma patients undergoing cytoreductive surgery

Edward J.A. Harris Steven Kao Brian McCaughan Takashi Nakano Nobuyuki Kondo Rebecca Hyland Anna K. Nowak Nicholas H. de Klerk Fraser J.H. Brims 《Journal of thoracic oncology》2019,14(2):288-293

Introduction

Malignant pleural mesothelioma (MPM) is an uncommon cancer with a poor prognosis and heterogeneous survival. Surgery for MPM is offered in some specialist centers to highly selected patients. A previously described classification and regression tree (CART) model stratified survival in unselected MPM patients using routinely collected clinical data. This study aimed to examine the performance of this CART model on a highly selected surgical population.

Methods

Data were collected from subjects undergoing cytoreductive surgery for MPM from specialist centers in Hyõgo, Japan, and Sydney, Australia, between 1991 and 2016. The CART model was applied using the combination of clinical variables to stratify subjects into risk groups (1 through 4); survival characteristics were then compared.

Results

Two hundred eighty-nine cases were included (205 from Australia, 84 from Japan). Overall median survival was 34.6 (interquartile range: 17.5–56.1) months; median age was 63.0 (interquartile range: 57.0–67.8) years, and 83.0% (n = 240) were male. There were no clinically meaningful differences between the two cohorts. Survival across the four risk groups was significantly different (p < 0.0001); the model stratified survival well with a Harrell's concordance statistic of 0.62 (95% confidence interval: 0.57–0.66) at 36 months. The group with the longest survival (median, 82.5 months) had: no weight loss, hemoglobin > 153 g/L and serum albumin > 43 g/L at time of referral to the surgical center.

Conclusions

Using routinely available clinical variables, the CART model was able to stratify surgical patients into risk groups with statistically different survival characteristics with fair to good performance. Presence of weight loss, anemia, and low albumin should confer caution when considering surgical therapy for MPM. 相似文献

73.

Midterm Outcomes of the Dissected Aorta Repair Through Stent Implantation Trial

Sabin J. Bozso Jeevan Nagendran Michael W.A. Chu Bob Kiaii Ismail El-Hamamsy Maral Ouzounian Jörg Kempfert Christoph Starck Michael C. Moon 《The Annals of thoracic surgery》2021,111(2):463-470