全文获取类型
收费全文 | 6044篇 |
免费 | 275篇 |
国内免费 | 102篇 |
专业分类
耳鼻咽喉 | 65篇 |
儿科学 | 71篇 |
妇产科学 | 195篇 |
基础医学 | 447篇 |
口腔科学 | 198篇 |
临床医学 | 440篇 |
内科学 | 1993篇 |
皮肤病学 | 84篇 |
神经病学 | 402篇 |
特种医学 | 227篇 |
外科学 | 1324篇 |
综合类 | 27篇 |
现状与发展 | 1篇 |
一般理论 | 2篇 |
预防医学 | 217篇 |
眼科学 | 131篇 |
药学 | 238篇 |
中国医学 | 3篇 |
肿瘤学 | 356篇 |
出版年
2024年 | 3篇 |
2023年 | 68篇 |
2022年 | 122篇 |
2021年 | 277篇 |
2020年 | 164篇 |
2019年 | 220篇 |
2018年 | 266篇 |
2017年 | 155篇 |
2016年 | 192篇 |
2015年 | 180篇 |
2014年 | 295篇 |
2013年 | 341篇 |
2012年 | 512篇 |
2011年 | 551篇 |
2010年 | 351篇 |
2009年 | 313篇 |
2008年 | 444篇 |
2007年 | 471篇 |
2006年 | 430篇 |
2005年 | 315篇 |
2004年 | 262篇 |
2003年 | 184篇 |
2002年 | 147篇 |
2001年 | 39篇 |
2000年 | 14篇 |
1999年 | 14篇 |
1998年 | 26篇 |
1997年 | 15篇 |
1996年 | 13篇 |
1995年 | 8篇 |
1994年 | 14篇 |
1993年 | 2篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1986年 | 1篇 |
1984年 | 2篇 |
1979年 | 1篇 |
1975年 | 2篇 |
1969年 | 1篇 |
排序方式: 共有6421条查询结果,搜索用时 671 毫秒
51.
Amina Amadou Heinz Freisling Mazda Jenab Konstantinos K. Tsilidis Antonia Trichopoulou Paolo Boffetta Bethany Van Guelpen Olatz Mokoroa Tom Wilsgaard Frank Kee Ben Schttker Jos M. Ordez-Mena Satu Mnnist Stefan Sderberg Roel C. H. Vermeulen J. Ramn Quirs Linda M. Liao Rashmi Sinha Kari Kuulasmaa Hermann Brenner Isabelle Romieu 《British journal of cancer》2021,124(11):1882
Background We investigated whether associations between prevalent diabetes and cancer risk are pertinent to older adults and whether associations differ across subgroups of age, body weight status or levels of physical activity.Methods We harmonised data from seven prospective cohort studies of older individuals in Europe and the United States participating in the CHANCES consortium. Cox proportional hazard regression was used to estimate the associations of prevalent diabetes with cancer risk (all cancers combined, and for colorectum, prostate and breast). We calculated summary risk estimates across cohorts using pooled analysis and random-effects meta-analysis.Results A total of 667,916 individuals were included with an overall median (P25–P75) age at recruitment of 62.3 (57–67) years. During a median follow-up time of 10.5 years, 114,404 total cancer cases were ascertained. Diabetes was not associated with the risk of all cancers combined (hazard ratio (HR) = 0.94; 95% confidence interval (CI): 0.86–1.04; I2 = 63.3%). Diabetes was positively associated with colorectal cancer risk in men (HR = 1.17; 95% CI: 1.08–1.26; I2 = 0%) and a similar HR in women (1.13; 95% CI: 0.82–1.56; I2 = 46%), but with a confidence interval including the null. Diabetes was inversely associated with prostate cancer risk (HR = 0.81; 95% CI: 0.77–0.85; I2 = 0%), but not with postmenopausal breast cancer (HR = 0.96; 95% CI: 0.89–1.03; I2 = 0%). In exploratory subgroup analyses, diabetes was inversely associated with prostate cancer risk only in men with overweight or obesity.Conclusions Prevalent diabetes was positively associated with colorectal cancer risk and inversely associated with prostate cancer risk in older Europeans and Americans.Subject terms: Risk factors, Cancer epidemiology 相似文献
52.
53.
Localized juvenile spongiotic gingival hyperplasia featuring unusual p16INK4A labeling and negative human papillomavirus status by polymerase chain reaction
下载免费PDF全文
![点击此处可从《Journal of oral pathology & medicine》网站下载免费的PDF全文](/ch/ext_images/free.gif)
54.
Guy Achkouty Nicolas Amabile Konstantinos Zannis Aurélie Veugeois Christophe Caussin 《The Canadian journal of cardiology》2018,34(3):342.e5-342.e7
From January 2013 to January 2017, 686 consecutive patients were referred to our centre for transcatheter aortic valve replacement, including 5 subjects with severe aortic regurgitation and acute refractory cardiogenic shock. These patients were contraindicated for surgical treatment by the heart team because of high surgical risk (median logistic EuroSCORE: 74.6/Society of Thoracic Surgeons score: 37.9). The success rate of valve implantation was 100% through transfemoral access with self-expandable devices. The observed 30-day mortality rate was 20%. Hence, the transcatheter aortic valve replacement procedure might represent a successful and life-saving intervention for treatment of patients with severe aortic regurgitation who present with acute refractory cardiogenic shock. 相似文献
55.
56.
57.
Sepideh N. Asadbeigi Lisheng Zhang Konstantinos Linos 《Journal of cutaneous pathology》2020,47(8):768-775
Desmoplastic small round-cell tumor (DSRCT) is a rare, aggressive malignant tumor, which in the great majority of cases arises at abdominal-pelvic sites. Nevertheless, rare cases of primary extra-abdominal tumors have been reported. In challenging cases, its molecular hallmark, the EWSR1-WT1 reciprocal translocation, can be exploited diagnostically by various molecular techniques. Herein, we report an extremely rare case of primary subcutaneous DSRCT in an effort to raise awareness among our dermatopathology colleagues by expanding the differential of superficial round-cell tumors. 相似文献
58.
59.