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   7031篇
  免费   325篇
  国内免费   35篇
耳鼻咽喉   113篇
儿科学   140篇
妇产科学   83篇
基础医学   909篇
口腔科学   144篇
临床医学   391篇
内科学   1747篇
皮肤病学   223篇
神经病学   538篇
特种医学   259篇
外科学   1245篇
综合类   40篇
一般理论   1篇
预防医学   200篇
眼科学   167篇
药学   298篇
中国医学   11篇
肿瘤学   882篇
  2023年   28篇
  2022年   67篇
  2021年   126篇
  2020年   75篇
  2019年   92篇
  2018年   127篇
  2017年   106篇
  2016年   162篇
  2015年   183篇
  2014年   189篇
  2013年   283篇
  2012年   419篇
  2011年   480篇
  2010年   278篇
  2009年   207篇
  2008年   432篇
  2007年   433篇
  2006年   481篇
  2005年   465篇
  2004年   489篇
  2003年   500篇
  2002年   454篇
  2001年   77篇
  2000年   75篇
  1999年   98篇
  1998年   116篇
  1997年   114篇
  1996年   84篇
  1995年   83篇
  1994年   67篇
  1993年   56篇
  1992年   49篇
  1991年   53篇
  1990年   35篇
  1989年   42篇
  1988年   45篇
  1987年   34篇
  1986年   28篇
  1985年   18篇
  1984年   19篇
  1983年   19篇
  1982年   24篇
  1981年   26篇
  1980年   21篇
  1979年   16篇
  1978年   16篇
  1977年   15篇
  1976年   11篇
  1975年   12篇
  1971年   9篇
排序方式: 共有7391条查询结果,搜索用时 15 毫秒
101.
Impacted primary teeth can be caused by odontogenic tumors such as odontomas, cystic diseases such as dentigerous and eruption cysts, and fibrous hyperplasia of the gingiva, while elimination of those causes reportedly results in normal eruption of primary teeth. We describe the course of a child from the age of 1 year until 4 years 10 months who had primary tooth eruption failure and was treated with dental methods. Although primary teeth expected to spontaneously erupt were followed, there were several on the left side that remained unerupted. We performed a left maxillary and mandibular gingivectomy to closely examine the cause of eruption delay and tooth germ dislocation, as well as attempt to induce eruption of the primary teeth. Based on histopathological results, the diagnosis was fibroma. Surgical procedures did not result in clear improvement of eruption failure. In order to improve masticatory function and aesthetics, the child was fixed with an artificial denture for all primary teeth not expected to erupt.  相似文献   
102.
103.
104.
105.
106.
107.
108.
A 16-year-old girl hospitalized with a sudden onset of blepharoptosis and diplopia revealed a combined paresis of the elevator palpebrae, the superior rectus, and the medial rectus muscles of the left eye as quantitatively demonstrated by the Hess chart and levator action test. A small midbrain lesion confined to the left cerebral peduncle and tegmentum, presumably by an ischemic or demyelinative process, was identified on magnetic resonance imaging. Despite uncertainty in its pathology, the incomplete oculomotor palsy of this case is certainly a consequence of oculomotor fascicular involvement in the intra-axial nerve root which initially fans out and then converges into the peripheral compact bundle. We speculate on the revised version of the oculomotor fascicular arrangements by which the neurophthalmologic features of the current case are better explained.  相似文献   
109.
110.
Tongue reconstruction was performed using a deep inferior epigastric perforator (DIEP) free flap in a 6‐year‐old girl with undifferentiated sarcoma of the tongue. After hemi‐glossectomy with upper neck dissection, a 3‐lobed DIEP free flap was used for the reconstruction. Donor site was closed primarily with suturing umbilicus in proper position. No flap loss, leakage, or infection occurred. Postoperatively, the patient was able to consume a normal diet without difficulty or aspiration and displayed good speech function. No donor site morbidity, e.g., herniation or bulging, was observed, and the patient was able to perform their normal daily activities. DIEP flaps provide a pliable skin paddle, an adequate amount of adipose tissue, and reduced donor site morbidity, even in children. We did not have any difficulty harvesting the DIEP flap or with the microvascular anastomosis. We consider DIEP free flaps to be the ideal option for pediatric tongue reconstruction. © 2013 Wiley Periodicals, Inc. Microsurgery 33:487–490, 2013.  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