全文获取类型
收费全文 | 214篇 |
免费 | 16篇 |
国内免费 | 3篇 |
专业分类
耳鼻咽喉 | 4篇 |
儿科学 | 16篇 |
妇产科学 | 19篇 |
基础医学 | 21篇 |
口腔科学 | 1篇 |
临床医学 | 33篇 |
内科学 | 52篇 |
神经病学 | 9篇 |
特种医学 | 2篇 |
外科学 | 18篇 |
综合类 | 4篇 |
预防医学 | 11篇 |
眼科学 | 1篇 |
药学 | 31篇 |
中国医学 | 4篇 |
肿瘤学 | 7篇 |
出版年
2023年 | 4篇 |
2022年 | 10篇 |
2021年 | 11篇 |
2020年 | 6篇 |
2019年 | 8篇 |
2018年 | 10篇 |
2017年 | 13篇 |
2016年 | 12篇 |
2015年 | 13篇 |
2014年 | 16篇 |
2013年 | 15篇 |
2012年 | 17篇 |
2011年 | 22篇 |
2010年 | 17篇 |
2009年 | 4篇 |
2008年 | 13篇 |
2007年 | 2篇 |
2006年 | 3篇 |
2005年 | 7篇 |
2004年 | 3篇 |
2003年 | 4篇 |
2002年 | 5篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 3篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1973年 | 1篇 |
1972年 | 2篇 |
1971年 | 1篇 |
排序方式: 共有233条查询结果,搜索用时 31 毫秒
51.
52.
Hamid-Reza Kianifar Javad Akhondian Mehri Najafi-Sani Ramin Sadeghi 《Iranian journal of pediatrics.》2010,20(3):261-268
Practicing medicine according to the best evidence is gaining popularity in the medical societies. Although this concept, which is usually called Evidence Based Medicine (EBM) has been explained in many resources, it has not been addressed enough in pediatrics. In this review, we briefly explained Evidence Based Medicine approach and its applications in pediatrics in order to help the pediatricians to efficiently integrate EBM into their daily practice. 相似文献
53.
Alexander M. Clark Patricia Davidson Kay Currie Mehri Karimi Amanda S. Duncan David R. Thompson 《Current treatment options in cardiovascular medicine》2010,12(1):1-9
Heart failure (HF) self-care relates to the decisions made outside clinical settings by the individual with HF to maintain
life, healthy functioning, and well-being. The people who help patients most (ie, caregivers/family members) should be involved
in care, and general principles of health behavior change should be used to guide support. Medicines should be prescribed
with once-daily dosing, with pharmacists providing medication review and support. Pill boxes should be provided and patients’
health literacy levels assessed. Psychosocial interventions for smoking cessation should be undertaken. Regular aerobic exercise
may benefit patients with mild to moderate HF and some with severe but stable HF; therefore, referral to cardiac rehabilitation
should be considered. Exercise regimen must take into account patient-related factors, including functional status, comorbid
conditions, and patient preferences. Intake of salt, alcohol, and fluid should be restricted, although these steps are supported
by limited evidence. Patients should be educated on appropriate sources of help. They should seek help immediately for persistent
chest pain, palpitations, syncope, breathlessness at rest, or a weight increase of ≥ 2 lb. Depression, if present, should
be addressed with antidepressants (sertraline and citalopram), cognitive behavioral therapy, and regular exercise. HF disease
management programs should be offered if available. 相似文献
54.
During a one-year period to September 1998, data were collected from all 213 patients referred with pleural effusion. There were 132 males and 81 females; their ages ranged from 18 to 85 years. The most common etiologies of effusion were congestive heart failure (39.4%), malignancy (27.2%), pneumonia (8%), empyema (5.2%), and tuberculosis (5.2%). Pleural effusions are frequent in Iran, and the causes are fairly similar to those reported by European authors, but with slightly more tuberculosis cases, mostly among Afghan refugees. 相似文献
55.
Susceptibilities to different antibiotics of Helicobacter pylori strains isolated from patients at the pediatric medical center of Tehran, Iran 总被引:3,自引:0,他引:3 下载免费PDF全文
Antibiotic susceptibility testing of 70 pediatric Helicobacter pylori isolates was performed by using screening agar and disk diffusion methods. Resistance to metronidazole and tinidazole was 72 to 79% and 71 to 81% by modified disk diffusion and 77% and 78% by screening agar, respectively. Susceptibilities to amoxicillin, ampicillin, clarithromycin, tetracycline, erythromycin, and ciprofloxacin were 58, 69, 75, 68, 68, and 65%, respectively. 相似文献
56.
Comparison of immunomarkers for the identification of adrenocortical cells in cytology specimens 总被引:1,自引:0,他引:1
We studied the immunoreactivity of three antibodies--A103, calretinin, and inhibin alpha in destained Papanicolaou (Pap) smears and cell-blocks of 40 fine-needle aspiration biopsy cases of adrenocortical lesions (35 cases of hyperplasia/adenoma and 5 cases of carcinoma). Five cases of carcinoma (4) and melanoma (1) metastases to the adrenal gland and five cases of renal-cell carcinoma were also included for comparison. In benign adrenocortical lesions, A103 staining was noted in 82% of the destained Pap smears and in 92% of cell-blocks. In malignant adrenocortical lesions, A103 staining was noted in 50% of the destained Pap smears and in 80% of cell-blocks. In comparison, calretinin staining was noted in 6% and 50% of destained smears and in 78% and 60% of the cell-blocks of benign and malignant adrenocortical lesions. Inhibin alpha was not positive in any of the smears and showed the lowest level of positivity in the cell-block sections, namely in 11% of the benign lesions and 25% of the malignant lesions. The sensitivity of A103 was 90% on cell-blocks and 74% on smears, that of calretinin 75% on cell-blocks and 11% on smears, and that of inhibin alpha, 13% on cell-blocks alone. The specificity of A103 was lower than the other two makers, 90% vs. 100% because of positivity in metastatic melanoma in the adrenal gland.Our data show A103 to be the immunomarker with the highest sensitivity for identifying cells of adrenocortical origin in destained Pap's smears and cell-block sections with, however, a lower specificity when compared with calretinin and inhibin alpha. Calretinin is comparable in sensitivity with A103 on cell-block sections alone and not on smears. The results of this study suggest that if metastatic melanoma in adrenal gland is not a consideration then A103 is the marker of choice for identifying cells of adrenocortical origin in the limited material available for diagnostic purposes in cytology specimens. 相似文献
57.
58.
Hassan Tajarenejad Mohammad Ali Ansari Soheila Akbari Hanieh Yazdanfar Seyedeh Mehri Hamidi 《Biomedical optics express》2021,12(10):6013
The use of nanoparticle photothermal effect as adjuvants in neuromodulation has recently received much attention, with many open questions about new nanostructures’ effect on the action potential. The photothermal properties of hexagonal gold nanoparticles are investigated in this work, including the absorption peak wavelength and light-heat conversion rate, using both experimental and simulation methods. Furthermore, the ability to use these nanostructures in axonal neural stimulation and cardiac stimulation by measuring temperature changes of gold nano-hexagons under 532 nm laser irradiation is studied. In addition, their thermal effect on neural responses is investigated by modeling small-diameter unmyelinated axons and heart pacemaker cells. The results show that the increase in temperature caused by these nano-hexagons can successfully stimulate the small diameter axon and produce an action potential. Experiments have also demonstrated that the heat created by gold nano-hexagons affects toad cardiac rhythm and increases T wave amplitude. An increase in T wave amplitude on toad heart rhythm shows the thermal effect of nano hexagons heat on heart pacemaker cells and intracellular ion flows. This work demonstrates the feasibility of utilizing these nanostructures to create portable and compact medical devices, such as optical pacemakers or cardiac stimulation. 相似文献
59.
60.