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   33792篇
  免费   7507篇
  国内免费   109篇
耳鼻咽喉   491篇
儿科学   1009篇
妇产科学   901篇
基础医学   2663篇
口腔科学   1551篇
临床医学   8167篇
内科学   7091篇
皮肤病学   853篇
神经病学   4029篇
特种医学   987篇
外国民族医学   5篇
外科学   4155篇
综合类   156篇
现状与发展   2篇
一般理论   14篇
预防医学   4639篇
眼科学   591篇
药学   1324篇
中国医学   13篇
肿瘤学   2767篇
  2024年   164篇
  2023年   1484篇
  2022年   729篇
  2021年   1453篇
  2020年   1531篇
  2019年   1223篇
  2018年   2287篇
  2017年   2200篇
  2016年   2224篇
  2015年   2297篇
  2014年   2764篇
  2013年   2854篇
  2012年   2246篇
  2011年   2253篇
  2010年   1858篇
  2009年   2101篇
  2008年   1601篇
  2007年   1412篇
  2006年   1410篇
  2005年   1159篇
  2004年   1031篇
  2003年   827篇
  2002年   735篇
  2001年   330篇
  2000年   188篇
  1999年   284篇
  1998年   403篇
  1997年   375篇
  1996年   355篇
  1995年   299篇
  1994年   207篇
  1993年   184篇
  1992年   131篇
  1991年   105篇
  1990年   72篇
  1989年   99篇
  1988年   84篇
  1987年   61篇
  1986年   52篇
  1985年   55篇
  1984年   42篇
  1983年   32篇
  1982年   30篇
  1981年   26篇
  1980年   26篇
  1979年   10篇
  1978年   18篇
  1977年   15篇
  1976年   21篇
  1971年   11篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Die Anaesthesiologie - Auch wenn für Anästhesiologen über Jahrzehnte die Prophylaxe und Therapie postoperativer Schmerzen im Rahmen des postoperativen Patientenkomforts an vorderster...  相似文献   
2.
3.
Cutaneous leiomyomas are rare benign smooth‐muscle tumors. These lesions are distinguished based on their cell of origin and are subclassified as pilar leiomyoma, angioleiomyoma, and genital‐type leiomyoma. Nipple leiomyoma is the least common genital‐type leiomyoma, arising from the dartoic muscle cell of the nipple. Histologic examination of the lesion is necessary for definitive diagnosis, and these uncommon tumors can pose a diagnostic challenge. We describe herein a series of six nipple leiomyomas with a spectrum of histologic appearances.  相似文献   
4.
Although depression is associated to physical discomfort, meanings of the body in depression are rarely addressed in clinical research. Drawing on the concept of the lived body, this study explores depression as an embodied phenomenon. Using a hermeneutic phenomenological approach, the analysis of narrative‐based interviews with 11 depressed adults discloses a thematic structure of an embodied process of an ambiguous striving against fading. Five subthemes elicit different dimensions of this process, interpreted as disabling or enabling: feeling estranged, feeling confined, feeling burdensome, sensing life and seeking belongingness. In relation to clinical practice, we suggest that the interdisciplinary team can focus on enhancing the enabling dimensions, for example through guided physical activities to support the patient to feel more alive, capable and connected. Moreover, we suggest that the treatment process benefits from an increased awareness of the ambiguity in the patient's struggle, acknowledging both destructive and recharging elements of the withdrawing, and the perceived conflict in‐between.  相似文献   
5.
6.
7.
8.
Aims: Relapse rates among cigarette smokers are high. Few studies have examined time-to-relapse using survival analysis in racially/ethnically diverse smokers and initial abstinence criteria have been inconsistent or unspecified. This study compared survival curves using two common definitions of initial abstinence. We hypothesized greater relapse rates among participants abstinent for only 24 hours (h) at the end-of-therapy (EOT) compared with 7 days. Methods: Adult smokers (59% Black, 22% Hispanic and 17% White) received 8-sessions of group cognitive behavioural therapy (CBT) plus transdermal nicotine patches and were assessed monthly up to 12 months post-EOT. Participants reporting abstinence (7-day point prevalence abstinence [ppa] or 24-h ppa) at the EOT were included in Kaplan–Meier curves. Results: Of 301 participants, 120 (40%) reported 7-day ppa at the EOT and an additional 29 (10%) reported 24-h ppa only. Over the 12-month follow-up period, nearly 50% remained abstinent. Of those who resumed smoking, most relapses occurred within the first three months. Survival curves indicated that median survival was 207 and 225 days for 7-day and 24-h definitions of abstinence, respectively. The difference in time-to-relapse between participants abstinent for 24?h at the EOT versus 7-days was not significant (p?=?0.14). Conclusions: Operationalization of initial abstinence is important for relapse analyses and comparisons of survival curves across samples. Participants reported high rates of abstinence and relapse rates were relatively low. Contrary to expectations, 24-h ppa at the EOT was not associated with greater relapse than 7-day abstinence. This suggests either measure may be utilized in relapse prevention research in racially/ethnically diverse treatment-seekers.  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