全文获取类型
收费全文 | 1191篇 |
免费 | 57篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 22篇 |
儿科学 | 50篇 |
妇产科学 | 50篇 |
基础医学 | 90篇 |
口腔科学 | 100篇 |
临床医学 | 98篇 |
内科学 | 267篇 |
皮肤病学 | 14篇 |
神经病学 | 59篇 |
特种医学 | 48篇 |
外科学 | 317篇 |
综合类 | 25篇 |
预防医学 | 15篇 |
眼科学 | 13篇 |
药学 | 66篇 |
中国医学 | 3篇 |
肿瘤学 | 20篇 |
出版年
2024年 | 3篇 |
2023年 | 12篇 |
2022年 | 29篇 |
2021年 | 40篇 |
2020年 | 26篇 |
2019年 | 30篇 |
2018年 | 30篇 |
2017年 | 36篇 |
2016年 | 44篇 |
2015年 | 58篇 |
2014年 | 67篇 |
2013年 | 70篇 |
2012年 | 126篇 |
2011年 | 103篇 |
2010年 | 48篇 |
2009年 | 51篇 |
2008年 | 99篇 |
2007年 | 91篇 |
2006年 | 76篇 |
2005年 | 62篇 |
2004年 | 51篇 |
2003年 | 35篇 |
2002年 | 32篇 |
2001年 | 13篇 |
2000年 | 10篇 |
1999年 | 14篇 |
1996年 | 1篇 |
排序方式: 共有1257条查询结果,搜索用时 15 毫秒
1.
Alper Alkan Erdal Erdem Omer Günhan Cimen Karasu 《Journal of oral and maxillofacial surgery》2002,60(8):898-904
PURPOSE: Bone healing is impaired in diabetes mellitus, particularly due to increased collagen breakdown. Recently, tetracyclines have been used to treat experimental bone defects because they have anticollagenolytic properties, and positive effects on the healing process have been obtained. The objective of this study was to develop a computer-assisted histomorphometric technique to quantitatively determine the amount of regenerating bone within experimental bone defects in a diabetic rodent model. MATERIALS AND METHODS: This study examined the effects of systemic doxycycline administration on the healing of tibial bone defects in healthy albino rats and in experimentally induced diabetic rats. Twenty-four female albino rats were assigned to 4 groups: diabetic, diabetic plus doxycycline, control, or control plus doxycycline. The standardized bone defects were histomorphometrically examined 10 and 30 days postoperatively. Histomorphometric analysis of the amount of new bone formation was performed using the Zeiss Vision image analysis program KS 400 (Kontron Elektron GmbH, Eching, Germany). RESULTS: At 10 days of healing, the diabetic groups exhibited inferior healing compared with the control groups in terms of the amount of new bone formation within the defects. However, the effect of doxycycline administration to the diabetic and control groups was not statistically different. At 30 days of healing, there were no statistically significant differences between the amount of newly formed bone in any of the groups. CONCLUSIONS: This study found that doxycycline administration did not significantly alter the amount of new bone formation during the healing of bone defects in control and diabetic rats. 相似文献
2.
3.
4.
5.
Umit M. Sahiner S. Tolga Yavuz Muge Gökce Betul Buyuktiryaki Ilhan Altan Selin Aytac Murat Tuncer Ayfer Tuncer Cansin Sackesen 《Pediatrics international》2013,55(4):531-533
In hypersensitive reactions to native L‐asparaginase, either premedication and desensitization or substitution with polyethylene glycol conjugated asparaginase (PEG‐ASP) is preferred. Anaphylaxis with PEG‐ASP is rare. An 8‐year‐old girl and a 2.5‐year‐old boy, both diagnosed as having acute lymphoblastic leukemia, presented with native L‐asparaginase hypersensitivity and substitution with PEG‐ASP was preferred. They received a premedication (methylprednisolone, hydroxyzine and ranitidine) followed by desensitization with PEG‐ASP infusion. Both patients developed anaphylaxis with peg‐asparaginase. These are the first reported cases of anaphylactic reaction to PEG‐ASP, despite the application of both premedication and desensitization. Anaphylaxis with PEG‐ASP is very rare and premedication and desensitization protocols may not prevent these hypersensitive reactions. 相似文献
6.
7.
Muftuoglu MA Koksal N Topaloglu U 《HPB : the official journal of the International Hepato Pancreato Biliary Association》2005,7(3):231-234
Background. Cyst hydatid disease of the liver is still endemic in certain regions of the world. Currently, surgical operation remains the treatment of choice in hydatidosis. The cyst cavity can be managed by using capitonnage, external drainage, introflexion or omentoplasty. Methods. Two hundred and thirty-five patients operated for hydatid cyst between January 1990 and February 2001 were analysed retrospectively. Either omentoplasty, external drainage, capitonnage or introflexion were used to treat residual cyst cavity. Results. Patients were categorised into three groups to evaluate complications: omentoplasty alone (group A), omentoplasty combined with other techniques (group B) and other techniques (group C). The overall mortality rates were <1%. Overall morbidity rates were 8.8% for group A, 19% for group B and 25% for group C, respectively. Mean hospital stay was 7.6 days for group A, 11.9 days for group B and 15.8 days for group C. Discussion. Postoperative surgical site infection, bile fistula, recurrence rate and overall morbidity were seen less frequently in patients who underwent omentoplasty in our series. Mean duration of hospital stay was significantly shorter in patients who underwent omentoplasty operations. Because omentum has a high absorptive capacity and the capability to fill the residual cavity, we recommend omentoplasty to manage patients with hydatid cyst of the liver, whether complicated or uncomplicated. 相似文献
8.
Umit Sekmen Tolga Muftuoglu Julide Sagiroglu Ozgun Gungor 《Saudi Journal Of Gastroenterology》2008,14(2):85-87
Colonic complications of Behcet''s disease due to intestinal involvement are rarely reported in the literature. Ulcers are the most frequently seen intestinal complications that cause bleeding and perforation predominantly in the ileocecal region. In this article, we report a patient with Behcet''s disease who presented with multiple perforations along the entire colon. Postoperative histopathological examination revealed multiple ulcers containing lymphocytic infiltrations in the small peripheral and submucosal venules. Intimal thickening and fresh intraluminal fibrin thrombosis were also seen in these venules. 相似文献
9.
10.
Mehmet?DoganEmail authorView authors OrcID profile Tolga?Han?Efe Tolga?Cimen Cem?Ozisler Mehmet?Ali?Felekoglu Ahmet?Goktug?Ertem Mehmet?Erat Omer?Yiginer Murat?Tulmac 《Lung》2018,196(2):173-178