全文获取类型
收费全文 | 29673篇 |
免费 | 1421篇 |
国内免费 | 219篇 |
专业分类
耳鼻咽喉 | 231篇 |
儿科学 | 611篇 |
妇产科学 | 601篇 |
基础医学 | 3249篇 |
口腔科学 | 667篇 |
临床医学 | 2563篇 |
内科学 | 7890篇 |
皮肤病学 | 517篇 |
神经病学 | 3360篇 |
特种医学 | 907篇 |
外科学 | 4340篇 |
综合类 | 60篇 |
一般理论 | 5篇 |
预防医学 | 1253篇 |
眼科学 | 513篇 |
药学 | 1711篇 |
中国医学 | 39篇 |
肿瘤学 | 2796篇 |
出版年
2024年 | 26篇 |
2023年 | 198篇 |
2022年 | 445篇 |
2021年 | 848篇 |
2020年 | 508篇 |
2019年 | 691篇 |
2018年 | 784篇 |
2017年 | 613篇 |
2016年 | 688篇 |
2015年 | 786篇 |
2014年 | 1146篇 |
2013年 | 1451篇 |
2012年 | 2297篇 |
2011年 | 2266篇 |
2010年 | 1311篇 |
2009年 | 1259篇 |
2008年 | 2053篇 |
2007年 | 2100篇 |
2006年 | 1981篇 |
2005年 | 1926篇 |
2004年 | 1868篇 |
2003年 | 1521篇 |
2002年 | 1508篇 |
2001年 | 213篇 |
2000年 | 133篇 |
1999年 | 171篇 |
1998年 | 288篇 |
1997年 | 247篇 |
1996年 | 229篇 |
1995年 | 189篇 |
1994年 | 147篇 |
1993年 | 160篇 |
1992年 | 142篇 |
1991年 | 107篇 |
1990年 | 106篇 |
1989年 | 77篇 |
1988年 | 77篇 |
1987年 | 77篇 |
1986年 | 61篇 |
1985年 | 64篇 |
1984年 | 92篇 |
1983年 | 56篇 |
1982年 | 58篇 |
1981年 | 58篇 |
1980年 | 38篇 |
1979年 | 24篇 |
1978年 | 20篇 |
1977年 | 33篇 |
1976年 | 20篇 |
1974年 | 19篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Paolo Adravanti Stefano Nicoletti Stefania Setti Aldo Ampollini Laura de Girolamo 《International orthopaedics》2014,38(2):397-403
Purpose
It has been reported that even one year after total knee arthroplasty (TKA), a relevant percentage of patients does not attain complete recovery and indicate unfavourable long-term pain outcome. We compared the clinical outcome of 33 patients undergoing TKA randomly assigned to the control or the pulsed electromagnetic field group (I-ONE therapy).Methods
I-ONE therapy was administered postoperatively four hours per day for 60 days. Patients were assessed before surgery and then at one, two and six months postoperatively using international scores.Results
One month after TKA, pain, knee swelling and functional score were significantly better in the treated compared with the control group. Pain was still significantly lower in the treated group at the six month follow-up. Three years after surgery, severe pain and occasional walking limitations were reported in a significantly lower number of patients in the treated group.Conclusions
Advantages deriving from early control of joint inflammation may explain the maintenance of results at follow-up. I-ONE therapy should be considered an effective completion of the TKA procedure. 相似文献992.
Francesco Greco Jeffrey A. Cadeddu Inderbir S. Gill Jihad H. Kaouk Mesut Remzi R. Houston Thompson Fijs W.B. van Leeuwen Henk G. van der Poel Paolo Fornara Jens Rassweiler 《European urology》2014
Context
Molecular imaging (MI) entails the visualisation, characterisation, and measurement of biologic processes at the molecular and cellular levels in humans and other living systems. Translating this technology to interventions in real-time enables interventional MI/image-guided surgery, for example, by providing better detection of tumours and their dimensions.Objective
To summarise and critically analyse the available evidence on image-guided surgery for genitourinary (GU) oncologic diseases.Evidence acquisition
A comprehensive literature review was performed using PubMed and the Thomson Reuters Web of Science. In the free-text protocol, the following terms were applied: molecular imaging, genitourinary oncologic surgery, surgical navigation, image-guided surgery, and augmented reality. Review articles, editorials, commentaries, and letters to the editor were included if deemed to contain relevant information. We selected 79 articles according to the search strategy based on the Preferred Reporting Items for Systematic Reviews and Meta-analysis criteria and the IDEAL method.Evidence synthesis
MI techniques included optical imaging and fluorescent techniques, the augmented reality (AR) navigation system, magnetic resonance imaging spectroscopy, positron emission tomography, and single-photon emission computed tomography. Experimental studies on the AR navigation system were restricted to the detection and therapy of adrenal and renal malignancies and in the relatively infrequent cases of prostate cancer, whereas fluorescence techniques and optical imaging presented a wide application of intraoperative GU oncologic surgery. In most cases, image-guided surgery was shown to improve the surgical resectability of tumours.Conclusions
Based on the evidence to date, image-guided surgery has promise in the near future for multiple GU malignancies. Further optimisation of targeted imaging agents, along with the integration of imaging modalities, is necessary to further enhance intraoperative GU oncologic surgery. 相似文献993.
Gabriele Materazzi Lorenzo Fregoli Gabriele Manzini Angelo Baggiani Mario Miccoli Paolo Miccoli 《World journal of surgery》2014,38(6):1282-1288
Background
No studies have compared robot-assisted transaxillary thyroidectomy (RATT) and minimally invasive video-assisted thyroidectomy (MIVAT) regarding cosmetic outcome and satisfactionMethods
Patients matching the inclusion criteria (benign nodule less than 4 cm and thyroid volume less than 30 mL) were randomly allotted to undergo MIVAT (group A) or RATT (group B). Cosmetic result, overall satisfaction, operative time, and complications were evaluated.Results
A total of 62 patients underwent hemithyroidectomy (30 in group A and 32 in group B). All patients were women, with the exception of one man in each group. The mean patient age was 36.9 years (group A) and 32.5 years (group B). Total operative time (intubation–extubation) was shorter in group A (71.6 min) than in group B (120.4 min). Complications included one transient laryngeal nerve injury in each group and one subcutaneous hematoma in group B. Postoperative hospital stay was longer in group B (1.85 days) than in group A (1.15 days). On the PASQ questionnaire, “scar appearance” and “satisfaction with appearance” scores were better in group A than in group B. In the Short Form (SF-36) 36-Item Health Survey Questionnaire, domains of “social activity” and “general health” were better in group B than in group A, whereas “bodily pain” scored higher in group B than in group A.Conclusions
RATT seems not to supersede MIVAT in terms of satisfaction when comparing two groups of patients undergoing thyroidectomy for benign disease. 相似文献994.
Christopher Springer Nasreldin Mohammed Stefano Alba Gerit Theil Vincenzo Maria Altieri Paolo Fornara Francesco Greco 《World journal of urology》2014,32(2):407-412
Objectives
To report the surgical outcomes of laparoscopic radical cystectomy (LRC) with extracorporeal orthotopic ileal neobladder (OIN) in patients with muscle-invasive urothelial carcinoma of the bladder (UCB).Materials and methods
Between October 2009 and December 2011, 37 patients with muscle-invasive UCB underwent a LRC with OIN. Indications included (a) muscle-invasive UCB T2–4a, N0–Nx, M0; (b) high-risk and recurrent non-muscle-invasive tumors; (c) T1G3 plus CIS; and (d) extensive non-muscle-invasive disease that could not be controlled by transurethral resection and intravesical therapy. Demographic data, perioperative, and postoperative variables were recorded and analyzed.Results
The median operating time was 330 min, with a median estimated blood loss of 410 ml. Median length of stay was 12 days, and the mean length of the skin incision to extract the specimen and for the configuration of the neobladder was 7 ± 1 cm. The complication rate was 21.6 % (Clavien II). No Clavien III–V complications were reported. Daytime and nocturnal continence were preserved in 95 and 78 %, respectively. No local recurrence or port site metastasis occurred. Median time to disease recurrence was 14 months (IQR 9–24), and 1-year cancer-specific survival was 91.9 %.Conclusions
Laparoscopic radical cystectomy with extracorporeal ileal neobladder is a challenging procedure but technically feasible, allowing low morbidity and oncological safety. Long-term oncological results are required to definitely recognize this procedure as a standard treatment for bladder cancer. 相似文献995.
Andrea Minervini Gianni Vittori Alessandro Antonelli Antonio Celia Simone Crivellaro Donato Dente Vincenzo Di Santo Bruno Frea Mauro Gacci Alberto Gritti Lorenzo Masieri Alessandro Morlacco Angelo Porreca Bernardo Rocco Paolo Parma Claudio Simeone Stefano Zaramella Marco Carini Sergio Serni 《World journal of urology》2014,32(1):295-295
996.
997.
998.
999.
1000.