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   153057篇
  免费   32679篇
  国内免费   2400篇
耳鼻咽喉   5243篇
儿科学   5603篇
妇产科学   2443篇
基础医学   3449篇
口腔科学   1540篇
临床医学   26882篇
内科学   47949篇
皮肤病学   7506篇
神经病学   14954篇
特种医学   6415篇
外科学   41704篇
综合类   317篇
现状与发展   72篇
一般理论   3篇
预防医学   7240篇
眼科学   3524篇
药学   1340篇
中国医学   25篇
肿瘤学   11927篇
  2024年   684篇
  2023年   4817篇
  2022年   1268篇
  2021年   3243篇
  2020年   6114篇
  2019年   2279篇
  2018年   7519篇
  2017年   7414篇
  2016年   8509篇
  2015年   8514篇
  2014年   15643篇
  2013年   15772篇
  2012年   5682篇
  2011年   5679篇
  2010年   10485篇
  2009年   14348篇
  2008年   5976篇
  2007年   4248篇
  2006年   6721篇
  2005年   3941篇
  2004年   3191篇
  2003年   2157篇
  2002年   2189篇
  2001年   3851篇
  2000年   3039篇
  1999年   3235篇
  1998年   3673篇
  1997年   3473篇
  1996年   3389篇
  1995年   3216篇
  1994年   1955篇
  1993年   1579篇
  1992年   1392篇
  1991年   1426篇
  1990年   1071篇
  1989年   1195篇
  1988年   1042篇
  1987年   877篇
  1986年   903篇
  1985年   724篇
  1984年   562篇
  1983年   527篇
  1982年   518篇
  1981年   407篇
  1980年   370篇
  1979年   308篇
  1978年   332篇
  1977年   404篇
  1975年   290篇
  1972年   310篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
102.
103.
Wound pain is a serious problem for elderly patients suffering from chronic leg ulcers, and it may lead to reduced wound healing rates and reduced quality of life. Biatain-Ibu Non-adhesive (Coloplast A/S), a new pain-reducing moist wound healing dressing containing ibuprofen was tested for pain reduction, safety, and efficacy on 10+2 patients in a single-blinded crossover study against Biatain Non-adhesive (Coloplast A/S). Pain was measured with a Numeric Box Scale before, during, and after dressing change. Quality of life was measured using the World Health Organization-5 Well-Being Index. Dressing moist wound healing properties such as absorption capacity and leakage were tested together with assessment of wound exudate and blood plasma content of ibuprofen. Use of the Biatain-Ibu foam dressing correlated with a decrease in pain intensity scores from 7 in the run-in period to approximately 2.5 in the Biatain-Ibu treatment phase. Quality of life measures were improved which together with the reduced pain could contribute to faster wound healing. The moist wound healing properties of Biatain-Ibu were similar to that of the Biatain Non-adhesive and ulcer size was reduced by 24% during the treatment period. Neither side effects nor systemic plasma concentrations of ibuprofen were observed. These data indicate that Biatain-Ibu could reduce persistent and temporary wound pain, increase Quality of life, was found safe to use, and had excellent moist wound healing properties.  相似文献   
104.
105.
106.
107.
108.
109.
Background Hydatid disease is the most severe helminthic zoonosis, with an important public health problem especially in rural areas in Turkey. The aim of this study was to review the problems and advantages encountered in surgical treatment of 43 patients who were ventilated with one-lung ventilation during last four years. Methods Patients, operated with one-lung ventilation, constitute the study group. Data related to symptoms, radiographic findings, performed surgical procedures, perioperative and postoperative morbidity, hospitalization time, and cyst recurrence were collected from each individual's records. Results Cystotomy and capitonnage were performed in all cases. Perioperative complications were seen in 5 patients. Four of these 5 patients had double-lumen endotracheal tube malpositioning. In one patient hypoxemia developed. The most common postoperative complication was atelectasis. One patient had recurrent cysts. There was no perioperative or postoperative death. Conclusions We prefer cystotomy and capitonnage because it is a fast and effective technique with limited postoperative complications. One-lung ventilation prevents the exposure of lower lung areas from massive aspiration, which may cause acute obstruction of airways, and contamination by cyst contents from the operative part of the lung that causes recurrent disease. One-lung ventilation in pulmonary hydatid cyst surgery may be preferred owing to lower mortality and morbidity rates.  相似文献   
110.
SONI NANDA  MD    VINEET RELHAN  MD    CHANDER GROVER  MD  DNB  MNAMS    B.S.N. REDDY  MD  MNAMS 《Dermatologic surgery》2006,32(3):387-392
BACKGROUND: Suction blister epidermal grafting is an established technique for the treatment of resistant and stable vitiligo especially over small and cosmetically important areas like the face. However, certain areas, such as lips and eyelids, require special considerations because of their anatomic peculiarities. PATIENTS AND METHODS: The current study was carried out on six patients of stable eyelid vitiligo, not responding to medical treatment. Suction blister was obtained from the thigh using the suction apparatus and the roof was grafted on to the dermabraded eyelid. Certain precautions were taken during the procedure, which will be highlighted in the current study. RESULTS: Response was excellent in all the patients in 3 to 6 months, with no complications. CONCLUSIONS: If carried out properly, suction blister technique is the procedure of choice for cosmetically important sites like eyelids.  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