全文获取类型
收费全文 | 813篇 |
免费 | 25篇 |
国内免费 | 3篇 |
专业分类
耳鼻咽喉 | 21篇 |
儿科学 | 47篇 |
妇产科学 | 27篇 |
基础医学 | 53篇 |
口腔科学 | 26篇 |
临床医学 | 54篇 |
内科学 | 191篇 |
皮肤病学 | 8篇 |
神经病学 | 52篇 |
特种医学 | 53篇 |
外科学 | 191篇 |
综合类 | 6篇 |
预防医学 | 13篇 |
眼科学 | 45篇 |
药学 | 23篇 |
中国医学 | 5篇 |
肿瘤学 | 26篇 |
出版年
2023年 | 3篇 |
2022年 | 8篇 |
2021年 | 25篇 |
2020年 | 6篇 |
2019年 | 19篇 |
2018年 | 6篇 |
2017年 | 23篇 |
2016年 | 16篇 |
2015年 | 26篇 |
2014年 | 34篇 |
2013年 | 49篇 |
2012年 | 53篇 |
2011年 | 85篇 |
2010年 | 34篇 |
2009年 | 24篇 |
2008年 | 52篇 |
2007年 | 54篇 |
2006年 | 78篇 |
2005年 | 80篇 |
2004年 | 54篇 |
2003年 | 47篇 |
2002年 | 26篇 |
2001年 | 17篇 |
2000年 | 7篇 |
1999年 | 8篇 |
1997年 | 2篇 |
1995年 | 1篇 |
1991年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
排序方式: 共有841条查询结果,搜索用时 15 毫秒
1.
Purpose: to determine wheather an association exists between sensorineural hearing loss and pseudoexfoliation. Methods: Hearing thresholds were determined by using pure-tone au-diometry in 75 patients with pseudoexfoliation syndrome and in the control group of 75 subjects without pseudoexfoliation The groups were sex and age matched. Results: The frequency of 相似文献
2.
Purpose: To report clinically, anotomically and angiographically documented cystoid macular edema (CME) associated with the use of latanoprost in 2 uncomplicated pseudophakic eyes. Methods: Retrospective rewiev of 2 patients who had history of latanoprost use and uncomplicated cataract surgery, described 相似文献
3.
Organ-specific autoimmune endocrine disorders may present as single diseases or may occur together in polyendocrine syndromes. We present a report of 23-year-old female with Graves' disease and concurrent hypocalcemia. As she lacked other specific features of autoimmune polyendocrine syndromes, the most likely diagnosis was Graves' disease coexisting with autoimmune hypoparathyroidism. 相似文献
4.
Ibrahim Ercan Burak Omür Cakir Tülay Ba?ak Eltaf Ay?a Ozbal Atilla Sahin Gürhan Balci Suat Turgut 《Otolaryngology--head and neck surgery》2006,134(5):751-755
OBJECTIVE: The aim of this study is to investigate dose-dependent effect of the topical application of methotrexate (MTX) in rats on the normal nasal mucosa, liver tissue, liver enzymes, and hemoglobin levels. STUDY DESIGN: Preclinical animal study. SETTING: Twenty male adult wistar albino rats were randomly divided into 4 groups (n=5). A single puff of MTX (2.5 microg) was applied to both nasal cavities 2 times a day. The animals were given MTX 1 day a week in group 1, 3 days a week in group 2, and 5 days a week in group 3. Control group animals were given 1 puff of physiologic saline to both nasal cavities 5 days a week and 2 times a day. After 28 days, liver biopsies, blood samples, and 5 nasal mucosal biopsies were taken. Histological examination was made with respect to certain parameters semiquantitatively (grade 0-3). The aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels and hemoglobin counts were studied from blood samples. RESULTS: There are no statistically significant differences with respect to histopathological parameters between the control group and the groups 1-3 (P>0.05). Histopathological examination of liver tissue did not reveal any evident difference between the control and study groups. Mean AST and ALT as liver function tests and hemoglobin counts were within normal limits. Topical application of MTX at these doses has no toxic effect on the nasal mucosa, the liver tissue, AST and ALT levels, and hemoglobin level. CONCLUSIONS: These results have been encouraging to investigate use of the topical application of MTX in nasal manifestation of autoimmune disease or addition of the topical application of MTX to the steroid treatment in cases with massive nasal polyposis resistant to steroids and prone to recurrence. 相似文献
5.
Ibrahim Ercan Burak Omür Cakir Tulin Sentürk Uzel Damlanur Sakiz Cetin Karaca Suat Turgut 《Otolaryngology--head and neck surgery》2006,135(1):52-55
OBJECTIVES: To investigate the role of Helicobacter pylori (H pylori) infection in laryngopharyngeal reflux (LPR). STUDY DESIGN: A prospective multidisciplinary clinical study. METHODS: Forty-four adult patients who applied to our ENT clinic with LPR symptoms were evaluated. Then these patients underwent upper gastrointestinal system endoscopy and double probe pH monitoring. In addition, during the endoscopy multiple biopsies from the stomach were obtained to detect H pylori. RESULTS: Results from 32 LPR positive patients were assessed (10 male and 22 female). There were no statistically significant differences between the presence of H pylori and sex, age, degree of gastritis and esophagitis, and also the number of reflux, fractional acid exposure time regarding proximal probe readings. Similarly for both proximal and distal probe readings, the average score of esophageal acid clearance was not statistically significant (P > 0.05). In addition, no statistically significant difference was found between the presence of H pylori and GERD (P > 0.05). CONCLUSIONS: The results of this study demonstrated that there is no relationship between gastric H pylori infection and LPR. EBM rating: B-3b. 相似文献
6.
7.
Ali Yildiz Ekrem Islamoglu Mustafa Yuksel Ibrahim Erol Kaan Karamik Tuncay Cakir Mutlu Ates Murat Savas 《Current Urology》2021,15(2):111
Background:To evaluate the changes in penile sensation by electrophysiological tests in patients who underwent radical prostatectomy (RP) and to demonstrate the role of dorsal penile nerve injury in postoperative erectile dysfunction.Materials and methods:Twenty-six volunteer patients who were eligible for RP were included in the study. Preoperative penile sensory electromyography and the International Index of Erectile Function-5 (IIEF-5) questionnaire were done for each patient. Erectile function assessment and electrophysiological evaluation of penile sensation were repeated at postoperative 3rd and 6th months.Results:Postoperative IIEF-5 scores and electromyography values were significantly lower than preoperative findings (p < 0.05). The IIEF-5 scores in the nerve sparing-RP (NS-RP) group were significantly higher than the non-nerve sparing-RP (NNS-RP) group in the postoperative period. Nerve conduction velocity values in the NS-RP group were also higher than the NNS-RP group at the postoperative 3rd and 6th months. However, these changes were not statistically significant (p > 0.05).Conclusions:Patients who underwent RP have decreased penile sensation due to cavernous nerve damage and a possible dorsal penile nerve injury. The decrease of penile sensation may be associated with postoperative erectile dysfunction. 相似文献
8.
Ozay Oz Scott J Fudemberg Banu Cakir Michael P Jones Akduman Levent 《Ophthalmic surgery, lasers & imaging》2004,35(3):207-214
BACKGROUND AND OBJECTIVE: To study the predictors of success in macular hole surgery. PATIENTS AND METHODS: Twenty-two eyes of 21 patients underwent macular hole surgery. The hole closure rate and the visual improvement were studied based on the preoperative visual acuity, stage and duration of the macular hole, the type of intravitreal tamponade used, and internal limiting membrane peeling. The internal limiting membrane was peeled only when it was clinically prominent. RESULTS: Macular holes were closed in 19 of the 22 eyes and visual improvement of 2 lines or more was achieved in 17 eyes. Preoperative visual acuity, duration of the macular hole, type of intraocular tamponade used, and internal limiting membrane peeling did not affect the outcome. A final visual acuity of 20/70 or better was more common after surgery for stage 2 holes (P = .019). CONCLUSION: The best predictor of outcome was the stage of the hole, with best results obtained in stage 2 holes. 相似文献
9.
John Taylor Barnard Omer Onur Cakir David Ralph Faysal A Yafi 《The journal of sexual medicine》2021,18(7):1158-1166
BackgroundDuring the last century, surgical management of erectile dysfunction has evolved from an experimental concept to a core treatment modality with widespread use among the men's health community. Over time, innovations in materials, mechanical design elements, device coatings, and surgical technique have provided patients with low-risk, reliable, and reproducible erectile function with high satisfaction rates.AimTo provide a foundation for future innovation by improving understanding of historical penile prosthetics and the rationale behind incremental technological improvements for the contemporary Men's Health physician.MethodsLiterature review was conducted to generate a comprehensive review of historical technological innovations in penile implant surgery. Companies with FDA approved penile prosthetics in use in the United States were contacted for information regarding technological innovations in the past and future devices in development. A separate literature review was performed to identify any significant future device design elements being tested, even in the ex vivo setting, which may have future clinical applications.OutcomesTechnological innovations in penile implant surgery were described.ResultsCurrent options for the prosthetic surgeon include malleable penile prostheses (MPP), self-contained (2-piece) inflatable penile prostheses, and multicomponent (3-piece) inflatable penile prostheses. Current MPPs consist of a synthetic coated solid core which allow for manipulation of the penis for concealability while maintaining sufficient axial rigidity to achieve penetration when desired. Multi-component (3-Piece) IPPs currently include the Coloplast Titan and Boston Scientific/AMS 700 which consist of a fluid reservoir, intrascrotal pump, and intracavernosal cylinders. The devices have undergone numerous design updates to the cylinders, pump, reservoir, tubing, and external coatings to increase reliability and decrease short- and long-term complications.Clinical ImplicationsFuture innovations in penile prosthetic surgery seek to broaden the indications and applicability to the transgender community and improve both safety and functionality for patient and partner.Strengths & LimitationsThe review is limited primarily to penile prosthetics approved for current or historical clinical use in the United States and may not be representative of the global prosthetic environment. Additionally, the research and development of future innovations, particularly those provided by device manufacturers, is likely limited by non-disclosure to maintain a competitive advantage.ConclusionsPenile prosthetic surgery will undoubtedly remain integral to the treatment of erectile dysfunction, and education regarding the current state of technological innovation will empower the prosthetic surgeon and biomedical engineering community to improve contemporary patient care and drive the development of the next generation of implantable penile prosthetics.Barnard JT, Cakir OO, Ralph D, et al. Technological Advances in Penile Implant Surgery. J Sex Med 2021;18:1158–1166. 相似文献
10.
Diffuse idiopathic skeletal hyperostosis (DISH) is a common but often unrecognized systemic disorder observed mainly in the middle-aged and elderly population, characterized by ankylosing formations of the spine and ossifications of peripheral ligaments, tendons and joint capsule insertion points (entheses). Despite the increase of prevalence with age, the condition often remains undiagnosed. It can be an asymptomatic incidental radiographic finding but can also manifest in several multiorgan complications, such as back and neck pain, restriction of mobility of the spine, peripheral joint affection, dysphagia, dyspnea, foreign body sensation, hoarseness, neurologic manifestations due to compression of the spinal cord, hyperuricemia, obesity, hypercholesterinemia and resulting cardiovascular comorbidities, implicating a multidisciplinary approach. The following article presents a current overview of the condition. 相似文献