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   6412篇
  免费   505篇
  国内免费   45篇
耳鼻咽喉   51篇
儿科学   123篇
妇产科学   39篇
基础医学   892篇
口腔科学   108篇
临床医学   474篇
内科学   1811篇
皮肤病学   97篇
神经病学   326篇
特种医学   231篇
外科学   1136篇
综合类   27篇
一般理论   2篇
预防医学   127篇
眼科学   101篇
药学   403篇
中国医学   11篇
肿瘤学   1003篇
  2024年   8篇
  2023年   131篇
  2022年   211篇
  2021年   468篇
  2020年   240篇
  2019年   296篇
  2018年   352篇
  2017年   270篇
  2016年   287篇
  2015年   273篇
  2014年   308篇
  2013年   314篇
  2012年   486篇
  2011年   546篇
  2010年   272篇
  2009年   205篇
  2008年   383篇
  2007年   333篇
  2006年   276篇
  2005年   242篇
  2004年   243篇
  2003年   211篇
  2002年   182篇
  2001年   35篇
  2000年   27篇
  1999年   50篇
  1998年   57篇
  1997年   49篇
  1996年   31篇
  1995年   31篇
  1994年   26篇
  1993年   25篇
  1992年   6篇
  1991年   11篇
  1990年   9篇
  1989年   4篇
  1988年   5篇
  1987年   5篇
  1986年   15篇
  1985年   4篇
  1984年   11篇
  1983年   5篇
  1982年   7篇
  1980年   4篇
  1979年   2篇
  1977年   1篇
  1976年   1篇
  1974年   1篇
  1972年   1篇
  1965年   1篇
排序方式: 共有6962条查询结果,搜索用时 187 毫秒
11.
In order to find useful information for the establishment of new treatment method to alcohol dependence, we investigated the change of the body image of patients with alcohol dependence before and after the treatment. HABIT (Haga Body Image Test), a questionnaire about body image developed in department of psychiatry in Kyoto Prefectural University of Medicine, was used to examine the change of body image between pre- and post-3-month conventional treatment program in 46 patients with alcohol dependence hospitalized into special institutions for treatment of the disease in Kyoto. Patients with poor outcome of the treatment showed improvement of body image on visceral function, feeling of appetite and outward appearance, while patients with good outcome indicated no significant change in these aspects. This finding likely suggests that the treatment would result in good outcome in patients having stable feeling of physical health, and the cognitive treatment approach about these aspects of body image should be performed on the patients with poor treatment outcome. On the other hand, the body image about motor function showed significantly higher score in the patients approach for the patients with poor outcome to become aware of their physical activity would be effective.  相似文献   
12.
Aneurysmal rupture into the intestinal tract is a rare but disastrous complication of an internal iliac artery aneurysm. We report herein the successful surgical repair of a fistula between a huge aneurysm of the right internal iliac artery and the rectum in an 81-year-old man. After a femoro-femoral cross-over bypass had been performed, the aneurysm was opened and its patent arterial branches were ligated with sutures. The fistula was then intra-aneurysmally sutured and covered with an omental flap. The diagnostic and therapeutic approaches to this severe complication are discussed with a review of the literature following the presentation of this case.  相似文献   
13.
Abstract Uro-neurological assessment was performed in four patients with small-fiber neuropathy due to amyloidosis (2 transthyretin-type/2 immunoglobulin light-chain-type). Voiding difficulties were due to detrusor weakness and impaired bladder sensation. In two patients cholinesterase inhibition treatment caused urge incontinence, indicating detrusor denervation supersensitivity. The underlying mechanisms of urinary dysfunction seem to involve postganglionic cholinergic and afferent somatic nerves.  相似文献   
14.
15.
Infective endocarditis of the mitral area accompanied by anorexia nervosa is extremely rare. A 34-year-old Japanese woman presented with high fever and a heart murmur that had developed over the previous 2-month period. Echocardiography revealed mitral regurgitation and vegetation attached to the anterior mitral leaflet, which had markedly prolapsed to the left atrium. We removed the vegetation with a small part of the anterior mitral leaflet and successfully repaired the mitral valve. The patient showed good recovery, and the mitral regurgitation and left ventricular chamber size had satisfactorily decreased at 2 months after the operation.  相似文献   
16.
A 78-year-old woman was admitted with dyspnea. She had caught a cold and took an over-the-counter drug (Nospole G) for 2 weeks before admission. Chest radiography and CT scanning showed bilateral diffuse and interstitial shadows, and arterial blood gas analysis demonstrated severe hypoxemia. Withdrawal of Nospole and treatment with both corticosteroid and sivelestat sodium resulted in improvement of clinical findings and successful recovery from mechanical ventilation. A drug lymphocyte stimulation test for Nospole G was positive. Based on these findings, we determined that this patient had drug-induced pneumonitis caused by Nospole G. Finally, she died of sepsis caused by multidrug-resistant Staphylococcus aureus (MRSA) infection. In summary, we report here an elderly case of drug-induced pneumonitis successfully weaned from mechanical ventilation by early treatment with corticosteroid and sivelestat sodium, monitored by changes of markers for interstitial pneumonitis (KL-6, SP-A, SP-D).  相似文献   
17.
Delayed manifestation of aortic stenosis caused by abdominal blunt trauma is rare. We report herein the case of a 67-year-old man who was taken to a nearby hospital after being crushed between a heavy truck and a wall. An emergency laparotomy was performed, revealing only a mesenteric tear which was repaired. He was discharged after an uneventful postoperative course; however, 1 month later he began to experience intermittent claudication, and presented to our hospital in December 1994, 1 year after the first operation. Angiography and enhanced computed tomography (CT) demonstrated infrarenal abdominal aortic dilatation with distal stenosis. Both the dilated and stenotic lesions were resected and bypass surgery was performed. Pathologic examination demonstrated that the intima had been lacerated circumferentially and everted distally, causing the aortic stenosis. To our knowledge, this is the first case of the delayed manifestation of traumatic aortic stenosis to be documented in Japan. The etiology of this rare complication of blunt trauma is described in this report.  相似文献   
18.
19.
20.
Elective cesarean as a risk factor for transfusion after delivery of twins   总被引:1,自引:0,他引:1  
We examined deliveries of twins to identify factors most strongly associated with an increased risk of transfusion. We reviewed the obstetric records of 511 twin deliveries at the Japanese Red Cross Katsushika Maternity Hospital from 2003 through 2007. After 18 (3.5%) of these deliveries, transfusions were required. Transfusion was significantly more likely after elective cesarean delivery at a gestational aged of 37 weeks or more (odds ratio, 4.85; 95% confidence interval, 1.87-12.61). Emergency cesarean delivery (at > or =37 weeks' gestation) was not associated with an increased risk of transfusion. The delivery mode of twins should be carefully considered because of the increased risk of transfusion after elective cesarean delivery at a gestational age of 37 weeks or more.  相似文献   
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