全文获取类型
收费全文 | 576篇 |
免费 | 40篇 |
国内免费 | 8篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 11篇 |
妇产科学 | 15篇 |
基础医学 | 92篇 |
口腔科学 | 27篇 |
临床医学 | 57篇 |
内科学 | 118篇 |
皮肤病学 | 20篇 |
神经病学 | 44篇 |
特种医学 | 10篇 |
外科学 | 51篇 |
综合类 | 8篇 |
一般理论 | 1篇 |
预防医学 | 66篇 |
眼科学 | 24篇 |
药学 | 47篇 |
中国医学 | 5篇 |
肿瘤学 | 25篇 |
出版年
2024年 | 2篇 |
2023年 | 29篇 |
2022年 | 54篇 |
2021年 | 43篇 |
2020年 | 29篇 |
2019年 | 51篇 |
2018年 | 47篇 |
2017年 | 33篇 |
2016年 | 23篇 |
2015年 | 32篇 |
2014年 | 27篇 |
2013年 | 37篇 |
2012年 | 55篇 |
2011年 | 46篇 |
2010年 | 20篇 |
2009年 | 12篇 |
2008年 | 18篇 |
2007年 | 16篇 |
2006年 | 8篇 |
2005年 | 14篇 |
2004年 | 10篇 |
2003年 | 6篇 |
2002年 | 8篇 |
2001年 | 1篇 |
1996年 | 3篇 |
排序方式: 共有624条查询结果,搜索用时 15 毫秒
611.
Afsaneh Sadeghzadeh Bazargan MD Mahsa Shemshadi MD Elham Ziaeifar MD Amirmasoud Taheri MD Masoumeh Roohaninasab MD Azadeh Goodarzi MD Mahta Mirhashemi MD 《Journal of Cosmetic Dermatology》2023,22(9):2548-2552
Background
Tranexamic acid is used to treat pigmented disorder in dermatology for a long time however there are limited data for effectiveness of tranexamic acid for rejuvenation and improvement of wrinkle. Here we want to find the effectiveness of tranexamic acid as mesotherapy in improvement of periorbital wrinkle in a clinical trial study.Methods
Patients with melasma who were treated with 4 session of tranexamic acid mesotherapy at intervals on 1 week were evaluated with Visioface device before starting and 1 month after last course of treatment. The outcomes including volume, area, area percent, and depth were measured by Visioface device.Results
Mean of periorbital wrinkles volume before and after procedure were 89 271 and 74 639 pixel3 (px3), respectively. Very significant difference with p-value of <0.001 was detected at volume of patient wrinkles before and after treatment. Moreover, the mean of area (and area percent) of their periorbital wrinkles before and after therapeutic method were 8481 Px3 (1.131%) and 7184 Px3 (0.646%), respectively, with significant differences (both have p-value of <0.001).Mean of periorbital wrinkles depth at before and after treatment were 9.8 and 9.6, respectively, without remarkable difference (p-value was 0.257).Conclusion
Tranexamic acid mesotherapy significantly leads to reduced volume and area of wrinkles. Injection of tranexamic acid as mesotherapy seems to be effective in improvement of periorbital wrinkling. 相似文献612.
613.
Jyoti Kumari MBBS MD Kinnor Das PGT Anant Patil MD Mahsa Babaei MD Clay J. Cockerell MD Mohamad Goldust MD 《Journal of Cosmetic Dermatology》2023,22(2):402-409
Background
Cutaneous sarcomas are uncommon cancers that can have a wide range of clinical symptoms and lead to considerable cutaneous as well as systemic morbidity.Aim
The objective of this review article is to discuss epidemiology, clinical features, diagnosis, and therapy of different types of cutaneous sarcomas.Material and methods
Literature was screened to retrieve articles from PubMed/Medline and Google Scholar and related websites. Cross-references from the relevant articles were also considered for review. Review articles, clinical studies, systematic reviews, meta-analyses, and relevant information from selected websites were included.Results and discussion
Cutaneous sarcomas have a negative effect on the quality of life. In their diagnosis, clinical presentation and histological evaluation are crucial. Complete surgical removal is the solution for more or less all cutaneous and subcutaneous sarcomas. The prognosis for cutaneous sarcomas is generally favorable since they tend to recur locally with distant metastases only on rare occasions. Patients having advanced disease should be treated in the setting of clinical trials if possible; choices include radiation therapy and systemic medicines. The value of innovative immunotherapy cannot be determined decisively at this time due to a paucity of relevant trials.Conclusion
As cutaneous sarcomas are rarely diagnosed based on clinical findings, histology plays an important role in the diagnosis. They have a relatively favorable prognosis if treated properly. Patients should be treated at specialized centres. 相似文献614.
615.
Hossein Aghamollaei Hassan Hashemi Mahsa Fallahtafti Seyed-Hashem Daryabari Mehdi Khabazkhoo Khosrow Jadidi 《国际眼科》2024,17(1):173-187
AIM: To review recent innovations, challenges, and applications of small incision lenticule extraction (SMILE) extracted lenticule for treating ocular disorders.
METHODS: A literature review was performed in the PubMed database, which was last updated on 30 December 2021. There was no limit regarding language. The authors evaluated the reference lists of the collected papers to find any relevant research.
RESULTS: Due to the simplicity and accuracy of modern femtosecond lasers and the extensive development of SMILE surgery, many healthy human corneal stromal lenticules were extracted during surgery, motivating some professionals to investigate the SMILE lenticule reusability in different ocular disorders. In addition, new approaches had been developed to preserve, modify, and bioengineer the corneal stroma, leading to the optimal use of discarded byproducts such as lenticules from SMILE surgery. The lenticules can be effectively re-implanted into the autologous or allogenic corneas of human subjects to treat refractive errors, corneal ectasia, and corneal perforation and serve as a patch graft for glaucoma drainage devices with better cosmetic outcomes.
CONCLUSION: SMILE-extracted lenticules could be a viable alternative to human donor corneal tissue. 相似文献
616.
Morrison Cassandra Dadar Mahsa Villeneuve Sylvia Ducharme Simon Collins D. Louis 《Age (Dordrecht, Netherlands)》2023,45(1):17-28
GeroScience - Increased age and cognitive impairment is associated with an increase in cerebrovascular pathology often measured as white matter hyperintensities (WMHs) on MRI. Whether WMH burden... 相似文献
617.
618.
Anant Patil MD Jun Lu MD FAAD Martin Kassir MD Mahsa Babaei MD Mohamad Goldust MD 《Journal of Cosmetic Dermatology》2023,22(2):395-401
Introduction
Dermatomyositis is a rare autoimmune inflammatory condition affecting skin and muscles. The disease can be seen in both adults and children. It can be associated with malignancy. Considering involvement of skin in the disease, many patients consult dermatologists for its treatment. Hence, knowledge about its presentation, complications, prognosis, and treatment is necessary.Objective
The objective of this review article is to provide comprehensive information about treatment of dermatomyositis.Methods
In this review article, we reviewed the published literature on adult and juvenile dermatomyositis to highlight the treatment. Articles published in peer-reviewed journals including reviews, clinical trials, case series, and case reports published in electronic database (MEDLINE/PubMed) through January 2021, cross references of respective articles and trials from clinicaltrials.gov were included for qualitative analysis of the literature.Results
Treatment options for dermatomyositis include traditional immunosuppressive agents and immunomodulatory therapy. High-dose corticosteroids represent the first line of treatment while other immunosuppressive agents are also used, either in combination with or as an alternative to corticosteroids, after initial treatment failure. Some biological agents have been used for the treatment of dermatomyositis with variable responses.Conclusion
Although several treatment options are available, several questions remain unanswered about the optimal treatment of dermatomyositis. 相似文献619.
Mahsa Sepahvand Narges Yazdi Mohammad Rohani Maziar Emamikhah 《Radiology Case Reports》2022,17(2):303
Myelitis, including longitudinally extensive transverse myelitis (LTEM), is reported in more than forty patients after coronavirus disease 2019 (COVID-19). Among COVID-19 vaccines, only Oxford-AstraZeneca COVID-19 vaccine (AZD1222) has been associated with few cases of myelitis (1 LTEM). We report the first case of myelitis/LTEM after BBIBP-CorV/Sinopharm vaccine, interestingly presented as a hemicord syndrome. A 71-year-old male presented with left-side diplegia, right-side hemihyposthesis with facial sparing and impaired position sensation in left foot after vaccination with BBIBP-CorV. MRI revealed a longitudinal signal in left cervical hemicord. This is the first reported myelitis and LTEM with COVID-19 vaccines other than AZD1222. 相似文献
620.
Negar Piri MSc Yousef Moradi PhD Reza Ghanei Gheshlagh PhD Mahsa Abdullahi MD Eghbal Fattahi MD Farhad Moradpour PhD 《Journal of clinical hypertension (Greenwich, Conn.)》2023,25(2):146-157
This study aimed to investigate the validity of self-reported hypertension and related factors in the Dehgolan Prospective Cohort Study (DehPCS). Data were obtained from 3996 participants aged 35–70 years in the enrolment phase of DehPCS. Self-reported hypertension and sociodemographic factors were collected by well-trained interviewers before hypertension diagnosis based on the reference criteria. The history of anti-hypertensive medication use and/or systolic blood pressure ≥140 (mmHg), or diastolic blood pressure ≥90 (mmHg) were considered as hypertension. Disagreement between self-reported and reference measures was assessed using sensitivity, specificity, positive, and negative predictive values (PPV and NPV), and kappa values. Binary and multinomial logistic regressions were used to investigate the correlates of validity of self-reported hypertension. The hypertension prevalence based on self-reports and the reference criteria was 19.49% and 21.60%, respectively. An acceptable percentage of kappa agreement value of 68.7% and relatively good overall agreement of 89.8% were found. Self-reported hypertension was guaranteed moderate sensitivity of 72.0% and high specificity of 94.5%, as well as the NPV and PPV of 92/7% and 77/9%, respectively. The chances of false-positive and false-negative reporting increased with older age, higher BMI, and a family history of hypertension. Being female, older age, higher BMI, concurrent diabetes, and stronger family ties to hypertension patients significantly increased the chance of reporting true positives relative to true negatives. Although, self-reported hypertension has an acceptable validity and can be used as a valid tool for screening epidemiological studies, it needs to be investigated because its validity is affected by age, gender, family history of hypertension, and other socio-demographic characteristics. 相似文献