首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   944篇
  免费   24篇
  国内免费   97篇
耳鼻咽喉   3篇
儿科学   38篇
妇产科学   1篇
基础医学   47篇
口腔科学   20篇
临床医学   129篇
内科学   210篇
皮肤病学   7篇
神经病学   123篇
特种医学   123篇
外科学   85篇
综合类   37篇
预防医学   25篇
眼科学   53篇
药学   86篇
肿瘤学   78篇
  2023年   4篇
  2022年   1篇
  2021年   11篇
  2020年   3篇
  2019年   10篇
  2018年   10篇
  2017年   8篇
  2016年   8篇
  2015年   4篇
  2014年   12篇
  2013年   29篇
  2012年   27篇
  2011年   26篇
  2010年   42篇
  2009年   34篇
  2008年   35篇
  2007年   89篇
  2006年   59篇
  2005年   42篇
  2004年   40篇
  2003年   29篇
  2002年   31篇
  2001年   31篇
  2000年   26篇
  1999年   33篇
  1998年   43篇
  1997年   42篇
  1996年   30篇
  1995年   34篇
  1994年   28篇
  1993年   42篇
  1992年   10篇
  1991年   14篇
  1990年   18篇
  1989年   31篇
  1988年   25篇
  1987年   16篇
  1986年   17篇
  1985年   14篇
  1984年   11篇
  1983年   4篇
  1982年   8篇
  1981年   4篇
  1980年   11篇
  1979年   2篇
  1978年   6篇
  1977年   8篇
  1976年   1篇
  1975年   2篇
排序方式: 共有1065条查询结果,搜索用时 15 毫秒
991.
992.
993.
BACKGROUND: Immediate results of endoscopic thoracic sympathectomy (ETS) for hyperhidrosis are good. Adverse effects are well known but are supposed to decrease with time. We report the long-term results of ETS with regard to efficacy, side effects and patient satisfaction. METHODS: From 1993 to 1998, 382 patients suffering from hyperhidrosis of the upper limbs were operated on by means of bilateral ETS. One hundred twenty-five could be reached. There were 91 females and 34 males with a mean age of 28 years. The mean follow-up was 3.8 years (range: 24 to 84 months). Patients answered a detailed questionnaire from an independent observer addressing the following issues: stability of the initial result, outcome of side effects, degree of satisfaction. RESULTS: The global recurrence rate was 8.8%: 6.6% for palmar hyperhidrosis and 65% for axillary hyperhidrosis. Compensatory sweating was observed in 86.4% of the patients. It was considered as minor by 61% of them, as embarrassing by 31.5%, and as disabling by 7.5%. Other reported side effects were: Horner's syndrome in 3 patients (2.4%), healing in 2 of them; chronic rhinitis in 3 (2.4%); gustatory sweating in 9 (7.2%); and hand dryness in 42%. Sixty-five percent of the patients were fully satisfied, 28.7% were globally satisfied, and 6.3% regretted the operation. Ninety-two percent of the patients claimed they would ask for the operation if it were to be redone. CONCLUSIONS: This study confirms that results of ETS are good and stable for palmar hyperhidrosis but deteriorate for axillary hyperhidrosis. Compensatory sweating does not improve with time and is the main cause of dissatisfaction. Recommendations drawn from these results are the following: (1) patients suffering from isolated axillary hyperhidrosis should rather be treated by local therapy; (2) patients should be better informed of adverse effects.  相似文献   
994.
The authors report three cases of ischemic stroke in young adults that occurred during or after an airplane flight. Workup was negative for any cause of stroke other than the presence of a patent foramen ovale (PFO). There is an increasing awareness of deep vein thrombosis and pulmonary embolism occurring in relation to long flights. Individuals with a PFO under these circumstances may be vulnerable to stroke from paradoxic embolism. "Economy class" stroke syndrome may be underdiagnosed and is an eminently preventable cause of stroke.  相似文献   
995.
996.
Rhinocerebral mucormycosis is a rare but often fatal fungal infection. We present 2 patients with mucormycosis complicated by internal carotid artery thrombosis. Magnetic resonance imaging was superior to computed tomography in localizing the pathological process. Subtotal resection of devitalized tissue and intravenous amphotericin B therapy resulted in a successful outcome for both patients. Prompt recognition of this disorder by using modern diagnostic and therapeutic modalities promises to improve survival rates.  相似文献   
997.
扁果绞股蓝化学成分的研究   总被引:4,自引:0,他引:4  
丁树利  朱兆仪 《药学学报》1993,28(5):364-369
从扁果绞股蓝(Gynostemma compressum X. X. Chen et D. R. Liang)中分离出四个皂甙,经光谱及化学方法鉴定了它们的化学结构,分别命名为扁果绞股蓝皂甙Ⅰ~Ⅳ(gycomoside Ⅰ~Ⅳ),均为新化合物。  相似文献   
998.
魏树礼  齐宪荣  杨杰 《药学学报》1992,27(5):381-384
报道了顺铂乙基纤维素微球的研制与药代动力学研究。对狗进行颌面部动脉栓塞实验,并与静脉滴注对照,用非火焰原子吸收分光光度法测定了外周静脉及组织的药物浓度。结果表明外周静脉血药浓度栓塞组低于对照组,而组织中的浓度则相反。故动脉栓塞化疗可提高药物在靶组织中的浓度,降低药物的全身毒副反应,从而达到靶向治疗的目的。  相似文献   
999.
1000.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号