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   194441篇
  免费   2355篇
  国内免费   85篇
耳鼻咽喉   1332篇
儿科学   7166篇
妇产科学   3479篇
基础医学   18782篇
口腔科学   1961篇
临床医学   14435篇
内科学   34536篇
皮肤病学   840篇
神经病学   18409篇
特种医学   9541篇
外国民族医学   3篇
外科学   31902篇
综合类   2567篇
一般理论   24篇
预防医学   19626篇
眼科学   3201篇
药学   10908篇
中国医学   638篇
肿瘤学   17531篇
  2023年   89篇
  2022年   177篇
  2021年   355篇
  2020年   231篇
  2019年   384篇
  2018年   22283篇
  2017年   17619篇
  2016年   19793篇
  2015年   1299篇
  2014年   1357篇
  2013年   1608篇
  2012年   8241篇
  2011年   22314篇
  2010年   19532篇
  2009年   12135篇
  2008年   20750篇
  2007年   23133篇
  2006年   1802篇
  2005年   3437篇
  2004年   4692篇
  2003年   5483篇
  2002年   3622篇
  2001年   474篇
  2000年   584篇
  1999年   387篇
  1998年   471篇
  1997年   438篇
  1996年   270篇
  1995年   248篇
  1994年   239篇
  1993年   201篇
  1992年   189篇
  1991年   212篇
  1990年   236篇
  1989年   176篇
  1988年   137篇
  1987年   141篇
  1986年   116篇
  1985年   106篇
  1984年   107篇
  1983年   124篇
  1982年   121篇
  1981年   104篇
  1980年   121篇
  1979年   70篇
  1978年   80篇
  1976年   78篇
  1975年   74篇
  1974年   77篇
  1938年   67篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
Anliegen dieses Artikels ist, die besondere Qualit?t und Chance von Psychodramatischer Supervision zu beschreiben, und gleichzeitig die Kompatibilit?t und fruchtbare Erg?nzung des Moreno’schen Ansatzes innerhalb des Formats Supervision innerhalb der Sozialen Arbeit auf zuzeigen. Dies wird anhand von 2 ausgew?hlten Praxisbeispielen dargestellt. Die Handlungskompetenz von Supervisandinnen und Supervisanden kann durch einfache psychodramatische Interventionen erweitert werden. Handlungshemmung wird überwunden, Spontaneit?t und Kreativit?t kommen ins Laufen und er?ffnen Perspektiven.  相似文献   
32.
33.
Relationship-centered care reflects both knowing and feeling: the knowledge that physician and patient bring from their respective domains of expertise, and the physician’s and patient’s experience, expression, and perception of emotions during the medical encounter. These processes are conveyed and reciprocated in the care process through verbal and nonverbal communication. We suggest that the emotional context of care is especially related to nonverbal communication and that emotion-related communication skills, including sending and receiving nonverbal messages and emotional self-awareness, are critical elements of high-quality care. Although nonverbal behavior has received far less study than other care processes, the current review argues that it holds significance for the therapeutic relationship and influences important outcomes including satisfaction, adherence, and clinical outcomes of care.  相似文献   
34.
Coronary flow reserve (CFR) has been used toassess coronary microcirculation and epicardial coro-nary stenoses[1— 3 ] . CFR is defined as the ratio ofcoronary flow under maximal coronary vasodilatationto coronary flow under resting conditions[4 ] .Whenthe cross- sectional area of epicardial coronary arteriesis constant,coronary flow velocity (CFV) ratios areequal to volume flow ratios.The most common method used clinically formeasuring CFVR is intracoronary Doppler flow(ICD) analysis re…  相似文献   
35.
36.
37.
38.
L D Keith  J C Crabbe 《Alcohol》1992,9(6):529-533
The intent of this study was to determine whether chronic ethanol (EtOH) vapor inhalation, with or without adjunct pyrazole (PYR) administration, was stressful in mice, as defined by increases in plasma corticosterone (CORT) concentration. Mice were randomly assigned to groups differentiated both on the basis of EtOH vapor exposure and the presence or absence of PYR administration. Blood samples for blood EtOH concentration (BEC) and plasma CORT concentration were obtained from mice after 72-96 hours of treatment. Mice were sacrificed after 96 hours of treatment and body and adrenal weight determined. BEC was significantly higher in PYR-treated animals and animals treated with the higher EtOH vapor concentration. Plasma CORT was elevated in proportion to BEC; however, other nonspecific stresses, in particular that of PYR administration, also elevated plasma CORT. Nonspecific stresses associated with this protocol may reduce the generality of these observations. Nevertheless, the high correlation between BEC and plasma CORT concentration in the PYR groups indicates that, with suitable control groups, the PYR-EtOH vapor inhalation approach is viable for studies concerned with EtOH effects on hypothalamic-anterior pituitary-adrenocortical function.  相似文献   
39.
40.
Traumatic infarction of the spinal cord in children   总被引:2,自引:0,他引:2  
Infarction of the spinal cord in childhood is rarely due to trauma. During a 15-year period (1971 to 1985), eight children were admitted to The Hospital for Sick Children, Toronto, with a diagnosis of traumatic infarction of the spinal cord. All of these patients had delayed onset of neurological signs varying between 2 hours and 4 days after their initial trauma. No bone abnormalities were seen on plain spine x-ray films. Myelography was carried out in seven of these children and found to be normal in all seven. Six patients who were paraplegic at the time of admission remained permanently paraplegic, but two with incomplete cord signs did show some improvement.  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