全文获取类型
收费全文 | 1681篇 |
免费 | 109篇 |
国内免费 | 7篇 |
专业分类
耳鼻咽喉 | 24篇 |
儿科学 | 37篇 |
妇产科学 | 33篇 |
基础医学 | 196篇 |
口腔科学 | 44篇 |
临床医学 | 139篇 |
内科学 | 401篇 |
皮肤病学 | 22篇 |
神经病学 | 110篇 |
特种医学 | 71篇 |
外科学 | 387篇 |
综合类 | 36篇 |
预防医学 | 91篇 |
眼科学 | 26篇 |
药学 | 99篇 |
中国医学 | 4篇 |
肿瘤学 | 77篇 |
出版年
2023年 | 11篇 |
2022年 | 21篇 |
2021年 | 40篇 |
2020年 | 21篇 |
2019年 | 38篇 |
2018年 | 43篇 |
2017年 | 36篇 |
2016年 | 33篇 |
2015年 | 40篇 |
2014年 | 62篇 |
2013年 | 62篇 |
2012年 | 96篇 |
2011年 | 100篇 |
2010年 | 56篇 |
2009年 | 62篇 |
2008年 | 72篇 |
2007年 | 91篇 |
2006年 | 77篇 |
2005年 | 74篇 |
2004年 | 75篇 |
2003年 | 65篇 |
2002年 | 67篇 |
2001年 | 42篇 |
2000年 | 54篇 |
1999年 | 44篇 |
1998年 | 25篇 |
1997年 | 12篇 |
1996年 | 14篇 |
1995年 | 10篇 |
1994年 | 15篇 |
1993年 | 12篇 |
1992年 | 17篇 |
1991年 | 26篇 |
1990年 | 22篇 |
1989年 | 27篇 |
1988年 | 27篇 |
1987年 | 27篇 |
1986年 | 17篇 |
1985年 | 20篇 |
1984年 | 20篇 |
1983年 | 9篇 |
1982年 | 11篇 |
1981年 | 6篇 |
1978年 | 10篇 |
1975年 | 10篇 |
1973年 | 10篇 |
1971年 | 6篇 |
1970年 | 9篇 |
1969年 | 9篇 |
1967年 | 5篇 |
排序方式: 共有1797条查询结果,搜索用时 15 毫秒
21.
Lionel Rebibo Sami Hakim Abdennaceur Dhahri Thierry Yzet Richard Delcenserie Jean-Marc Regimbeau 《Obesity surgery》2016,26(5):995-1001
Purpose
The use of laparoscopic sleeve gastrectomy (LSG) is increasing worldwide. Although post-LSG gastric stenosis (GS) is less frequent, it has not been well defined and lacks standardized management procedures. The objective of the present study was to describe a series of patients with GS symptoms after LSG and to develop a standardized management procedure for this complication.Methods
We performed a retrospective analysis of a prospective database of patients presenting with GS after LSG procedures performed between January 2008 and March 2014. The primary efficacy criterion was the frequency of post-LSG GS. GS was classified as functional (i.e. a gastric twist) or organic. The secondary efficacy criteria included the time interval between LSG and diagnosis of GS, the type of stenosis, the type of management, and the follow-up data.Results
During the study period, 1210 patients underwent primary or secondary LSG. Seventeen patients had post-operative symptoms of GS (1.4 %); one patient had achalasia that had not been diagnosed preoperatively and thus was excluded from our analysis. The median time interval between LSG and diagnosis of GS was 47.2 days (1–114). Eleven patients had organic GS and six had functional GS. Seven patients required nutritional support. Endoscopic treatment was successful in 15 patients (88.2 %) after balloon dilatation (n?=?13) or insertion of a covered stent (n?=?2). Two of the 15 patients required conversion to Roux-en-Y gastric bypass (11.8 %).Conclusion
GS after LSG is a rare complication but requires standardized management. Most cases can be treated successfully with endoscopic balloon dilatation.22.
Börgermann J Hakim K Friedrich I Diez C 《Interactive Cardiovascular and Thoracic Surgery》2003,2(2):125-127
We report on a 34-year-old male with recurrent transient ischemic attacks 1 year after transcatheter closure of a patent foramen ovale. Echocardiography demonstrated thrombus attached to the device, although the patient had been anticoagulated with phenprocoumon. There was no residual shunt. Computed tomography and transcranial Doppler ultrasonography showed no evidence of a new stroke. The thrombosed device was removed under cardiopulmonary bypass and the defect was closed with a pericardial patch. The patient was discharged home and has been well for almost 2 years. At this time, there is no evidence for any new neurological events. 相似文献
23.
目的比较放射科医生在临床解读乳腺钼靶片和在实验室回顾性阅读相同照片的表现。材料和方法本研究经过学术委员会批准,豁免知情同意。9位有经验的放射科 相似文献
24.
Belmahi A El Mazouz S Gharib NE Bencheikh R Ouazzani S 《Annales de chirurgie plastique et esthétique》2003,48(4):211-215
From October 1996 to January 2001, 20 patients (14 men and six women) ranging from 36 to 75 years old have been treated for their small skin defects of the nose by using the bilobed flap. These skin defects were located in 15 cases at the alar region and in five cases at the tip region. They were secondary to the resection of basal cell carcinoma in 17 cases and benign tumors in three cases. Their diameter ranged from 8 to 17 mm and in all these cases there was no involvement of the lining or cartilage. The design used for this bilobed flap was the Zitelli one, based on some mathematical principles; its base was medial or lateral depending on the site of the defect. With this method, the skin defects were reconstructed esthetically without any distortion of local anatomy of the nose with skin having the same color, texture and thickness. With an average of 28 month follow-up, all these reconstructions were stable with discreet scars and without the trapdoor phenomenon. No complications were reported. Esthetic reconstruction of such subunit nasal skin defects is easily done by this technique and is better than that obtained by the majority of others methods. 相似文献
25.
Fettouh HA Raouf HA Shenoufy A El Feel A Agabo H Hakim AA Fettouh IA 《Transplantation proceedings》2007,39(4):807-810
INTRODUCTION: In this study, we present our experience with laparoscopic donor nephrectomy and evaluate the outcomes of donors and recipients. PATIENTS AND METHODS: Between March 2003 and August 2006, 400 laparoscopic donor nephrectomies were performed in our institution. Donors were evaluated for renal vasculature using computed tomography angiography. We used the left kidney in 329 donors and the right kidney in 71. Donor surgeries were done transperitoneally using three trocars on the left side and four trocars on the right side. Kidneys were extracted manually through a 7-cm Pfanenstiel incision. RESULTS: All cases were completed laparoscopically. Mean operative time was 117 +/- 34 minutes. Mean blood loss was 56 +/- 28 mL. None of the donors required a blood transfusion. Mean warm ischemia time was 2.6 +/- 0.4 minutes. The mean renal artery length was 3.1 +/- 0.4 cm; the mean renal vein length was 2.4 +/- 1.2 cm. Mean hospital stay was 2.1 days. No donor required readmission. Kidneys were transplanted successfully and the mean recipient creatinine on discharge was 1.2 +/- 0.6 mg/dL. One patient had a renal artery thrombosis on postoperative day 2. Another patient with double renal arteries had thrombosis of the smaller artery just after surgery. Acute tubular necrosis was seen in 17 patients, four of whom required dialysis. Kidney function recovered thereafter in all acute tubular necrosis cases. CONCLUSION: Laparoscopic surgery is a minimally invasive approach for living donor nephrectomy with good functional outcomes. The donor benefits from lesser morbidity without compromising the anatomic or physiological outcome of the nephrectomized kidney. 相似文献
26.
Fassi-Fehri H Badet L Cherass A Murat FJ Colombel M Martin X Gelet A 《European urology》2007,51(2):498-503
OBJECTIVES: To evaluate the efficacy and safety of the InVance bulbourethral sling in male stress urinary incontinence. MATERIALS AND METHODS: Between June 2003 and April 2005, the InVance bulbourethral sling was implanted into 50 patients with urinary incontinence after prostate surgery in 49 cases and pelvic trauma in 1 case. The patients were monitored and evaluated in a prospective manner (continence, tolerance, and satisfaction). The treatment was considered to be successful if the patient stopped wearing any kind of continence pad (patient cured) or only one pad per day (patient improved), with no de novo urinary disorders and without significant postvoid residual urine. Patient satisfaction with the procedure was assessed. RESULTS: After a median follow-up of 6 mo, 50% of patients were dry, 26% had improved, and 24% suffered treatment failure. The success rates for the patients with severe incontinence and those who had undergone radiation therapy were 50% and 25%, respectively. All patients who were dry or had improved were satisfied and presented no obstructive or irritative de novo urinary disorders. The overall success rate for the 51 procedures conducted was 74.5%. Six cases of transitory acute urine retention and six cases of persistent perineal pain were reported. Explantation was necessary because of suppuration of the sling in three patients and of a de novo irritative urinary disorder in one patient. No cases of pubic osteitis or urethral erosion were reported. CONCLUSIONS: The InVance bulbourethral sling procedure makes it possible to treat stress urinary incontinence after prostate surgery with satisfactory and lasting short-term results. Severe incontinence and a past history of pelvic radiation therapy seem to be factors contributing to the failure of this procedure. 相似文献
27.
Ibrahima Sall Abdelmounaim Ait Ali M.D. Hakim El Kaoui M.D. Sidi Mohammed Bouchentouf M.D. Abderrahmane El Hjouji M.D. Mohammed El Fahssi M.D. Ahmed Bounaim M.D. Aziz Zentar M.D. Khalid Sair M.D. 《American journal of surgery》2010,199(2):e25
Retroperitoneal contamination may occur during the natural history of hydatid disease. Primary hydatid cyst of the retroperitoneum is extremely rare. The authors report a case of a giant retroperitoneal hydatid cyst. Clinicians and surgeons must be aware of this possibility and follow a policy of nonsystematic puncture of an abdominal cyst and avoid spillage during surgery. Symptoms are related to the size, location, or ensuing complications of a cyst. Its occurrence should be strongly suspected ahead of any abdominal cyst, especially in an endemic area, where it may act as a parasite. Total and careful surgical excision is the gold-standard therapy. 相似文献
28.
29.
Renée M. Hakim Caroline M. Frey Karen E. Spadoni Keith Meyer 《Journal of developmental and physical disabilities》2018,30(5):677-688
The purpose of this study was to administer clinical balance measures in community-dwelling adults with unilateral lower extremity (LE) amputations and determine optimal cut-off scores for identifying fallers. A cross-sectional study was conducted on a convenience sample of 40 independently ambulatory participants with unilateral LE amputations and a prosthetic device (20 fallers and 20 nonfallers) who were tested during a single session using: the Amputee Mobility Predictor with Prosthesis (AMP PRO), Functional Reach (FR), Single Limb Stance (SLS) and the Timed-Up-and-GO (TUG). There was a statistically significant difference on the AMP PRO (4.75 points.; 95% CI 1.10–8.40) for fallers (36.95 out of 47, SD 7.43) compared with nonfallers (41.70 out of 47, SD 3.13) and on the TUG (4.17 s., 95% CI 0.65–7.69) for fallers (14.84 s, SD 7.33) versus nonfallers (10.67 s, SD 2.64). The AMP PRO had a moderate Area Under the Curve (AUC) predictive value of 0.70 with an optimal cut-off score of 39.5 out of 47 total points (sensitivity 80%, specificity 60%) for identification of fallers. For the TUG, there was a moderate AUC value of 0.68 (sensitivity 70%, specificity 60%) when using a cut-off score of 10.03 s. There was a moderate to high correlation between the AMP PRO and TUG both between (r?=??0.77) and within (r?=??0.68) groups indicating that they measure similar constructs. Limitations included a heterogeneous sample and self-report of fall history. Both the AMP PRO and the TUG provide acceptable sensitivity and specificity for identifying fallers among community-dwelling adults with LE amputation. 相似文献
30.