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   4999篇
  免费   220篇
  国内免费   71篇
耳鼻咽喉   153篇
儿科学   165篇
妇产科学   155篇
基础医学   519篇
口腔科学   188篇
临床医学   453篇
内科学   961篇
皮肤病学   117篇
神经病学   263篇
特种医学   207篇
外国民族医学   1篇
外科学   835篇
综合类   215篇
现状与发展   1篇
一般理论   1篇
预防医学   347篇
眼科学   95篇
药学   304篇
  1篇
中国医学   71篇
肿瘤学   238篇
  2023年   33篇
  2022年   80篇
  2021年   123篇
  2020年   66篇
  2019年   89篇
  2018年   125篇
  2017年   105篇
  2016年   108篇
  2015年   130篇
  2014年   170篇
  2013年   194篇
  2012年   317篇
  2011年   325篇
  2010年   189篇
  2009年   117篇
  2008年   213篇
  2007年   285篇
  2006年   260篇
  2005年   289篇
  2004年   207篇
  2003年   202篇
  2002年   220篇
  2001年   159篇
  2000年   171篇
  1999年   164篇
  1998年   44篇
  1997年   36篇
  1996年   27篇
  1995年   37篇
  1994年   22篇
  1993年   15篇
  1992年   80篇
  1991年   71篇
  1990年   62篇
  1989年   52篇
  1988年   42篇
  1987年   47篇
  1986年   53篇
  1985年   43篇
  1984年   30篇
  1983年   21篇
  1979年   20篇
  1975年   14篇
  1974年   27篇
  1973年   18篇
  1971年   21篇
  1970年   25篇
  1969年   16篇
  1968年   13篇
  1967年   13篇
排序方式: 共有5290条查询结果,搜索用时 0 毫秒
1.
2.
3.
目的 探讨中西医结合治疗慢性结肠炎的体会。方法 对采用中草药灌肠液E+西医药治疗66例慢性结肠炎的临床观察进行分析。结果66例患者中,有效率达96%左右。结论 慢性结肠炎是我国的常见病及多发病,采用中草药+西医药治疗,效果好,药价低廉,操作简便,值得推广,应予重视。  相似文献   
4.
Budesonide-containing Apulein ointment has been used for the treatment of 29 women suffering from vulvitis, pruritus vulvae caused by vaginal discharge, gestational inflamed hemorrhoid, hymenitis, and late postoperative suture inflammation. The ointment rapidly and completely controlled local infiltration and the accompanying subjective complaints. It did not cause local alteration, the consistency of the ointment met the requirements and it did not disturb the patients' making their toilet. According to the author's opinion the product is a potent antiphlogistic which proved to be a valuable adjuvant to target specific treatment of inflammatory processes of the external female genital organs and perianal regions.  相似文献   
5.
Summary A new modification of microvenous anastomosis, which has increased patency rates while simultaneously decreasing the difficulty of the procedure, is presented in this paper. The primary purpose of this study was to compare the classical and the temporary stent techniques of microvenous anastomosis. Because of problems such as mixing and tangling of strings during insertion and tying of the last four sutures while applying the temporary stent technique, we decided to modify the procedure. The silastic tube was removed through an incision (venotomy), distant from the actual suture line. This modified technique and the other above mentioned techniques were carried out on rat femoral veins. The results indicate that this modification has increased patency rates, shortened the time of anastomosis and facilitated the procedure.  相似文献   
6.
7.
8.
AIM: To evaluate the effects of oral continuous 17beta-estradiol plus norethisterone acetate (E2/NETA) replacement therapy on abdominal subcutaneous fat, serum leptin level (SLL) and body composition in postmenopausal women. MATERIALS AND METHODS: A 6-month, prospective, randomized, double-blind and placebo-controlled study was conducted. Forty-three healthy naturally postmenopausal women aged 43-65 years were randomly assigned to receive E2/NETA (2 mg E2 plus 1 mg NETA, n = 22) or placebo (n = 21). Fasting SLL by enzyme-linked immunosorbent assay, subcutaneous abdominal fat thickness (STh) by ultrasound and the anthropometric indices of body weight (BW), body mass index (BMI), waist and hip circumference (WC, HC) and waist-to-hip ratio (WHR) were recorded at the beginning and the end of the study. RESULTS: After 6 months of therapy, BW and SLL increased in the placebo group (p = 0.043 and 0.033, respectively). WC, HC and STh decreased significantly in the E2/NETA group (p = 0.002, 0.006 and 0.000, respectively) and they were also significantly lower in women receiving E2/NETA than in women taking placebo (p = 0.000, 0.034 and 0.000, respectively). At baseline, SLL and STh were positively correlated with all anthropometric indices except WHR. CONCLUSION: Oral continuous combined regimen of E2/NETA significantly reduced central fat accumulation as assessed by WC and STh, and attenuated the increase in SLL. The observed changes in SLL were highly and positively related to changes in STh. The oral continuous combined E2/NETA regimen appears to have protective effects on cardiovascular function and probably on metabolic diseases by its slimming effect upon WC in postmenopausal women.  相似文献   
9.
Cutaneous aspergillosis is generally associated with immunosuppression, burns, and major trauma. Most cases are acquired by direct inoculation, although cutaneous involvement does occasionally occur with disseminated disease. Surgical wound infections caused by Aspergillus species are very unusual and to our knowledge have not been described in the setting of organ transplantation. We describe two liver transplant recipients who developed wound aspergillosis during a nosocomial outbreak of Aspergillus infection. Infection developed in the second and fourth postoperative week respectively, and in both cases wound appearance mimicked necrotizing fasciitis. Both patients died despite local debridement and antifungal therapy with amphotericin B. Aspergillus must be added to the list of potential pathogens of surgical wounds, especially in the setting of organ transplantation.  相似文献   
10.
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