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   124999篇
  免费   10222篇
  国内免费   477篇
耳鼻咽喉   1312篇
儿科学   3402篇
妇产科学   2290篇
基础医学   17745篇
口腔科学   2544篇
临床医学   13806篇
内科学   26583篇
皮肤病学   2351篇
神经病学   13307篇
特种医学   4717篇
外国民族医学   10篇
外科学   16865篇
综合类   1452篇
一般理论   78篇
预防医学   10217篇
眼科学   2010篇
药学   8424篇
中国医学   127篇
肿瘤学   8458篇
  2023年   742篇
  2022年   1192篇
  2021年   2874篇
  2020年   1886篇
  2019年   2847篇
  2018年   3387篇
  2017年   2535篇
  2016年   2940篇
  2015年   3320篇
  2014年   4284篇
  2013年   5701篇
  2012年   8444篇
  2011年   8413篇
  2010年   5037篇
  2009年   4579篇
  2008年   7387篇
  2007年   7867篇
  2006年   7282篇
  2005年   7149篇
  2004年   6688篇
  2003年   5971篇
  2002年   5840篇
  2001年   2076篇
  2000年   1976篇
  1999年   1869篇
  1998年   1445篇
  1997年   1179篇
  1996年   952篇
  1995年   958篇
  1994年   821篇
  1993年   741篇
  1992年   1232篇
  1991年   1156篇
  1990年   1096篇
  1989年   1045篇
  1988年   928篇
  1987年   857篇
  1986年   892篇
  1985年   880篇
  1984年   725篇
  1983年   639篇
  1982年   620篇
  1981年   517篇
  1980年   432篇
  1979年   542篇
  1978年   441篇
  1977年   409篇
  1975年   365篇
  1974年   393篇
  1973年   367篇
排序方式: 共有10000条查询结果,搜索用时 187 毫秒
1.
2.
3.
4.
International Journal of Clinical Oncology - Immune-checkpoint inhibitors (ICIs) are standard treatments for metastatic non-small cell lung cancer (NSCLC). Patients with poor performance status...  相似文献   
5.
6.
The current study explored the influence of three methods of parental emotion discourse (structured story-telling, reminiscing, and picture book) and their relation to preschoolers’ emotion understanding. Thirty-seven families participated in the study. Analyses showed that the structured story-telling method produced more emotion words, was high in unique emotion words, and was high for both emotion labelling and explanations. All three methods showed some potential to predict preschooler’s emotion understanding. Structured story-telling was best at predicting role-taking, while reminiscing and the picture book both were better at predicting situation knowledge. Additional studies are needed to further explore the influence of different methods of assessing emotion discourse to enhance validity and reliability of research in this field.  相似文献   
7.
It is well recognized that the world population is ageing rapidly. Therefore, it is important to understand ageing processes at the cellular and molecular levels to predict the onset of age‐related diseases and prevent them. Recent research has focused on the identification of ageing biomarkers, including those associated with the properties of the Golgi apparatus. In this context, Golgi‐mediated glycosylation of proteins has been well characterized. Additionally, other studies show that the secretion of many compounds, including pro‐inflammatory cytokines and extracellular matrix–degrading enzymes, is modified during ageing, resulting in physical and functional skin degradation. Since the Golgi apparatus is a central organelle of the secretory pathway, we investigated its structural organization in senescent primary human dermal fibroblasts using confocal and electron microscopy. In addition, we monitored the expression of Golgi‐related genes in the same cells. Our data showed a marked alteration in the Golgi morphology during replicative senescence. In contrast to its small and compact structure in non‐senescent cells, the Golgi apparatus exhibited a large and expanded morphology in senescent fibroblasts. Our data also demonstrated that the expression of many genes related to Golgi structural integrity and function was significantly modified in senescent cells, suggesting a relationship between Golgi apparatus function and ageing.  相似文献   
8.
ABSTRACT

Close observation of the interactions between a traumatised mother and her infant son provides information on the modes of transmission of psychic trauma in the mother–infant dyad. Following the presentation of a current literature review on the theme, the subject of “radioactive residue” and counter-transference in the transmission of psychic trauma from mother to infant will be illustrated through a clinical case study that focuses on a Haitian mother and her two-year-old infant son who has been referred to a “transitional care nursery” in urban Paris. The encounter with this mother–infant dyad is analysed through observing the quality of the interactions that take place between the mother and infant in order to determine how a particularly traumatic narrative impacts the mother–infant relationship, in addition to relations with the clinician. Mother and infant respond to one another through the emission and reception of “radioactive residues” as hypothesized by Gampel. This clinical case study shows that there is a need to consider transcultural factors and collective experience and history when analysing traumatic events. Additionally, the case study shows that counter-transference can be an effective clinical tool for gaining access to an infant's experience as the recipient of a traumatic narrative.  相似文献   
9.
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