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   575篇
  免费   30篇
  国内免费   1篇
耳鼻咽喉   6篇
儿科学   25篇
妇产科学   15篇
基础医学   73篇
口腔科学   8篇
临床医学   67篇
内科学   98篇
皮肤病学   9篇
神经病学   57篇
特种医学   11篇
外科学   75篇
综合类   18篇
预防医学   34篇
眼科学   20篇
药学   39篇
肿瘤学   51篇
  2023年   16篇
  2022年   6篇
  2021年   26篇
  2020年   18篇
  2019年   12篇
  2018年   18篇
  2017年   12篇
  2016年   14篇
  2015年   19篇
  2014年   19篇
  2013年   35篇
  2012年   51篇
  2011年   40篇
  2010年   25篇
  2009年   20篇
  2008年   27篇
  2007年   32篇
  2006年   32篇
  2005年   16篇
  2004年   26篇
  2003年   15篇
  2002年   22篇
  2001年   6篇
  2000年   12篇
  1999年   13篇
  1998年   13篇
  1997年   5篇
  1996年   8篇
  1995年   4篇
  1994年   2篇
  1993年   2篇
  1992年   3篇
  1991年   2篇
  1990年   6篇
  1989年   3篇
  1988年   2篇
  1987年   1篇
  1986年   1篇
  1985年   2篇
  1984年   2篇
  1983年   1篇
  1982年   2篇
  1980年   1篇
  1979年   1篇
  1973年   2篇
  1971年   2篇
  1970年   4篇
  1969年   2篇
  1968年   2篇
  1949年   1篇
排序方式: 共有606条查询结果,搜索用时 15 毫秒
41.
42.
Summary This report deals with the study of longitudinal growth of pre-school children from different socio-economic classes in the urban community of Delhi. The role of socio-economic factors which affect the growth standards of weight, height, circumference of head, chest, arm, calf and pelvic width of these children at different ages from birth up to 5 years is discussed. It is observed that in malnutrition resulting from an adverse effect of poor socio-economic status, all measurements of the body are affected, the height and the head being the least and the weight, the circumferences of the chest, arm and calf the most. From the Longitudinal Morbidity and Mortality Survey of Children’s Unit, Indian Council of Medical Research, New Delhi.  相似文献   
43.
44.
45.
'Bleeding disorders' are listed as a cause of postmenopausal bleeding even though there appear to be no reported cases. We present a case of postmenopausal bleeding, because of chronic DIC, which resulted from aortic aneurysm and was managed with replacement blood products and tranexamic acid.  相似文献   
46.
OBJECTIVE: To assess clinical and immunologic effectiveness and acute toxicity to nevirapine (NVP)-based fixed-dose combinations (FDCs) in antiretroviral-naive HIV-1-infected patients in India. DESIGN: Observational study of patients initiated on NVP-based combination therapy delivered as FDCs. METHODS: Antiretroviral-naive HIV-1-infected patients initiated on FDCs (zidovudine/lamivudine [3TC]/NVP or stavudine/3TC/NVP) were assessed clinically and with CD4 counts periodically. Adverse events to NVP were assessed clinically and by laboratory markers. Frequency and risk factors for development of adverse events and clinical outcomes were determined. RESULTS: Of the 1291 patients started on therapy, 1253 completed a minimum of 3 months of follow-up. Rash and hepatitis were documented in 6.6% (95% confidence interval [CI]: 5.5-8.3) and 3.2% (95% CI: 2.3-4.8) of patients initiating therapy, respectively. There was significant improvement in CD4 counts over 2 years. Fourty-eight patients died, and 186 clinical events were documented in these patients. Tuberculosis was the most common cause of morbidity and mortality. Self-reported adherence was high. CONCLUSION: Fixed-dose formulations of NVP-based combination therapy are safe and produced durable clinical and immunologic benefit.  相似文献   
47.
Valdecoxib, a COX-2 inhibitor, has recently been introduced as a gel formulation. The present study was conducted to evaluate the efficacy, safety and tolerability of valdecoxib gel in adult patients with painful inflammatory joint conditions. The present study was a 10-day prospective, open, multicentric (6 centres) trial. Patients with clinical and radiological diagnosis of painful inflammatory joint conditions were treated with valdecoxib gel (1%). Efficacy was assessed by visual analogue scale (VAS), patient's and physician's global assessment of pain relief. Grading of associated clinical manifestations such as stiffness, swelling, tenderness and restriction of mobility was done. Tolerability and safety was assessed by physical examination, laboratory parameters and evaluation of adverse events. There was a statistically significant decrease in the mean pain visual analogue score (p<0.05). Onset of pain relief was within 15 minutes. There was a reduction of 58.8%, 57.2%, 65.4% and 60.2% in mean scores of stiffness, swelling, tenderness and mobility respectively from the baseline which was statistically significant. The laboratory values were within normal limits. The drug was well tolerated. There was no report of any hypersensitivity reaction. This study confirms that valdecoxib gel (1%) is an effective and safe option for the management of painful inflammatory joint conditions.  相似文献   
48.
目的 观察托吡酯对大鼠脑缺血时海马细胞外液兴奋性氨基酸释放的影响 ,探讨托吡酯在脑梗死治疗中应用的可能性。方法 建立大鼠脑缺血模型 ,给予托吡酯干预 ,应用微透析方法观察大鼠海马细胞外液中兴奋性氨基酸及抑制性氨基酸的变化。结果 脑缺血后兴奋性氨基酸和抑制性氨基酸的释放均增加 ,而给予托吡酯干预后 ,脑缺血后兴奋性氨基酸的释放明显减少 ,而抑制性氨基酸的释放明显增加。结论 托吡酯能有效地抑制脑缺血中兴奋性氨基酸的释放 ,能减轻兴奋性氨基酸的毒性作用。  相似文献   
49.
An 11-year-old boy presented to our hospital with episodes of palpitations of short duration. 2-Dimensional echocardiography revealed tumors originating in left atrium and left ventricle. During surgery one more tumor was detected in right atrium. All three tumors were excised successfully.  相似文献   
50.
A case of embryonal rhabdomyosarcoma of the middle ear presenting with facial paralysis and a polypoidal aural mass who subsequently had convulsions due to intracranial extension is presented for its rarity.  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