全文获取类型
收费全文 | 1102篇 |
免费 | 76篇 |
国内免费 | 26篇 |
专业分类
耳鼻咽喉 | 11篇 |
儿科学 | 16篇 |
妇产科学 | 16篇 |
基础医学 | 59篇 |
口腔科学 | 123篇 |
临床医学 | 88篇 |
内科学 | 208篇 |
皮肤病学 | 34篇 |
神经病学 | 98篇 |
特种医学 | 52篇 |
外科学 | 202篇 |
综合类 | 24篇 |
一般理论 | 1篇 |
预防医学 | 38篇 |
眼科学 | 50篇 |
药学 | 122篇 |
中国医学 | 7篇 |
肿瘤学 | 55篇 |
出版年
2023年 | 12篇 |
2022年 | 12篇 |
2021年 | 27篇 |
2020年 | 26篇 |
2019年 | 32篇 |
2018年 | 38篇 |
2017年 | 40篇 |
2016年 | 30篇 |
2015年 | 26篇 |
2014年 | 48篇 |
2013年 | 54篇 |
2012年 | 87篇 |
2011年 | 74篇 |
2010年 | 61篇 |
2009年 | 40篇 |
2008年 | 53篇 |
2007年 | 55篇 |
2006年 | 59篇 |
2005年 | 57篇 |
2004年 | 37篇 |
2003年 | 51篇 |
2002年 | 31篇 |
2001年 | 30篇 |
2000年 | 22篇 |
1999年 | 11篇 |
1998年 | 10篇 |
1997年 | 20篇 |
1996年 | 18篇 |
1995年 | 14篇 |
1994年 | 15篇 |
1993年 | 10篇 |
1992年 | 7篇 |
1991年 | 20篇 |
1990年 | 16篇 |
1989年 | 7篇 |
1988年 | 3篇 |
1987年 | 5篇 |
1986年 | 8篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 4篇 |
1982年 | 2篇 |
1980年 | 8篇 |
1979年 | 5篇 |
1976年 | 2篇 |
1967年 | 2篇 |
1963年 | 1篇 |
1961年 | 1篇 |
1960年 | 2篇 |
1903年 | 1篇 |
排序方式: 共有1204条查询结果,搜索用时 46 毫秒
1.
2.
Kai-Hang Yiu MBBS Chung-Wah Siu MBBS Chu-Pak Lau MD Kathy L.F. Lee MBBS Hung-Fat Tse MD 《Heart rhythm》2007,4(2):221-223
We report a case of successful transvenous, catheter-based, cavotricuspid isthmus ablation for treatment of atrial flutter using microwave energy. Microwave energy was delivered at 900–930 MHz using 21 W of power. Bidirectional cavotricuspid isthmus conduction block was achieved by microwave ablation without any patient discomfort or complication during the procedure. Our initial experience suggests that transcatheter microwave ablation is feasible for the cure of typical atrial flutter. 相似文献
3.
Rice varieties with similar amylose content differ in starch digestibility and glycemic response in humans 总被引:7,自引:0,他引:7
L N Panlasigui L U Thompson B O Juliano C M Perez S H Yiu G R Greenberg 《The American journal of clinical nutrition》1991,54(5):871-877
Three high-amylose rice varieties, IR42, IR36, and IR62, with similar chemical composition including amylose content (26.7-27.0%), were cooked under the same conditions and tested for in vitro digestibility as well as blood glucose and insulin responses in healthy human volunteers. The starch-digestion rate and the glycemic and insulin responses were the highest in IR42, followed by IR36 and, then IR62. The differences were not due to unabsorbed carbohydrate but were related to their physicochemical properties, such as gelatinization temperature, minimum cooking time, amylograph consistency, and volume expansion upon cooking. When the three varieties were cooked for their minimum cooking time, they had the same degree of gelatinization and their starch-digestion rates and glycemic responses were similar. We conclude that amylose content alone is not a good predictor of starch-digestion rate or glycemic response. Rice varieties with similar high-amylose contents can differ in physicochemical (gelatinization) properties and this, in turn, can influence starch digestibility and blood glucose response. 相似文献
4.
Paired kidney analysis of tacrolimus and cyclosporine microemulsion-based therapy in Chinese cadaveric renal transplant recipients 总被引:5,自引:0,他引:5
Chi Yuen Cheung Kim Ming Wong Hoi Wong Chan Yan Lun Liu Yiu Han Chan Ho Sing Wong Wai Leung Chak Koon Shing Choi Ka Foon Chau Chun Sang Li 《Transplant international》2006,19(8):657-666
Few studies used paired kidneys for comparison between tacrolimus and cyclosporine in renal transplantation. Most of the published data used whole blood trough levels for drug monitoring. However, the use of limited sampling strategy and abbreviated formula to estimate the 12-h area under concentration-time curve (AUC(0-12)) allowed better prediction of drug exposure. Sixty-six first cadaveric renal transplant recipients receiving paired kidneys were randomized to receive either tacrolimus-based (n = 33) or cyclosporine microemulsion (Neoral)-based therapies (n = 33). Abbreviated AUC(0-12) was used for drug monitoring and dose titration. Mean follow-up duration was 2.8 +/- 2 years. The patient and graft survival were comparable. Fewer incidence of acute rejection was observed in tacrolimus group (15% vs. 27.3%) though the difference was not significant (P = 0.23). The absolute value and the rate of decline of creatinine clearance were both significantly better in tacrolimus-treated patients. Prevalence of hypertension, post-transplant diabetes mellitus, infection, and malignancy were similar in both groups. Prevalence of hypercholesterolemia (11/33 vs. 4/33) and gum hypertrophy (6/33 vs. 1/33) was more common in cyclosporine-treated patients (P = 0.04 in both parameters). This was the first prospective, randomized study with paired kidney analysis showing the renal function was significantly better in tacrolimus-treated patients than in cyclosporine-treated patients. 相似文献
5.
6.
Verna W. Y. Yiu Robert P. Dluhy Richard P. Lifton Lisa M. Guay-Woodford 《Pediatric nephrology (Berlin, Germany)》1997,11(3):343-346
In evaluating hypertensive children and adolescents, the etiological considerations should include a set of inherited disorders
that share very low plasma renin activity (PRA) as a common feature. In particular among these disorders, glucocorticoid remediable
aldosteronism (GRA) appears to be emerging as an important etiology of hypertension in the pediatric population. We report
the evaluation of a 9-year-old Caucasian girl who presented with severe hypertension and a strong family history of early-onset
hypertension. Her suppressed PRA, her family history, and her failure to respond to conventional antihypertensive therapy
raised GRA as a potential etiology. The diagnosis was confirmed by an elevated ratio of urinary 18-oxotetrahydrocortisol to
urinary tetrahydroaldosterone and genetic testing, which demonstrated the chimeric gene duplication. The molecular pathogenesis
of GRA and the clinical implications are reviewed.
Received May 15, 1996; received in revised form and accepted September 16, 1996 相似文献
7.
RY Anadolu † A Birol ‡ S Bostanci † A Boyvat† 《Journal of the European Academy of Dermatology and Venereology》2002,16(2):152-153
Pemphigus vulgaris is an autoimmune blistering disorder in which both genetic and environmental factors, mainly drugs, are thought to play a part in its aetiopathogenesis. Although some drugs that contain thiol groups, such as D-penicillamine and captopril, and non-thiol drugs, such as cephalosporin, have been reported to trigger or induce pemphigus, there are no previous reports regarding the influence of quinolones in triggering this disease. Here we present a case of pemphigus possibly triggered by quinolones. 相似文献
8.
9.