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   117084篇
  免费   6174篇
  国内免费   161篇
耳鼻咽喉   1800篇
儿科学   5211篇
妇产科学   3997篇
基础医学   16222篇
口腔科学   2859篇
临床医学   8396篇
内科学   22172篇
皮肤病学   3359篇
神经病学   9155篇
特种医学   5147篇
外国民族医学   32篇
外科学   19248篇
综合类   1598篇
一般理论   30篇
预防医学   5863篇
眼科学   3392篇
药学   8131篇
中国医学   319篇
肿瘤学   6488篇
  2018年   918篇
  2017年   794篇
  2016年   1113篇
  2015年   1241篇
  2014年   1642篇
  2013年   2416篇
  2012年   3159篇
  2011年   3210篇
  2010年   2022篇
  2009年   1970篇
  2008年   3335篇
  2007年   3532篇
  2006年   3684篇
  2005年   3815篇
  2004年   3743篇
  2003年   3607篇
  2002年   3564篇
  2001年   7065篇
  2000年   6992篇
  1999年   5879篇
  1998年   1601篇
  1997年   1520篇
  1996年   1314篇
  1995年   1224篇
  1994年   1104篇
  1993年   1133篇
  1992年   3804篇
  1991年   3610篇
  1990年   3585篇
  1989年   3386篇
  1988年   3012篇
  1987年   2912篇
  1986年   2843篇
  1985年   2651篇
  1984年   1980篇
  1983年   1622篇
  1982年   943篇
  1981年   921篇
  1980年   778篇
  1979年   1851篇
  1978年   1358篇
  1977年   1124篇
  1976年   946篇
  1975年   1189篇
  1974年   1230篇
  1973年   1206篇
  1972年   1057篇
  1971年   992篇
  1970年   896篇
  1969年   797篇
排序方式: 共有10000条查询结果,搜索用时 122 毫秒
1.
Clinical Rheumatology - Central sensitization (CS) is a known contributor to chronic pain in people with knee osteoarthritis (KOA) and is commonly measured by psychophysical testing or...  相似文献   
2.
Hillermann  T.  Homburg  K.  Rainer  M.  Budde  U. 《Der Anaesthesist》2022,71(4):299-302
Die Anaesthesiologie - Eine junge Patientin erleidet während der Anlage einer axillären Plexusblockade einen generalisierten Krampfanfall. Die Mechanismen, im Wesentlichen die vermutlich...  相似文献   
3.
4.
Prevention Science - As evidence-based interventions (EBIs) become more widely disseminated, fidelity of implementation (FOI) often wanes. This study explores the association between FOI and...  相似文献   
5.
6.
Martens  U. M.  Akkad  J.  Weiss  M. 《Best Practice Onkologie》2019,14(9):338-352
best practice onkologie - Die Einführung von Immuncheckpointinhibitoren (ICI) veränderte die Behandlung und die Prognose zahlreicher Tumorerkrankungen entscheidend. Grundsätzlich ist...  相似文献   
7.
8.
Purpose: Non-opioid medications as a part of multimodal analgesia has been increasingly suggested in the management of acute post-surgical pain. The present study was planned to compare the efficacy of the combination of pregabalin plus ?v ibuprofen. Methods: 58 patients were included in this prospective, randomized, double-blinded study. The pregabalin group (Group P, n = 29) received 150 mg pregabalin, the pregabalin plus ibuprofen group (Gropu PI, n = 29) received 150 mg pregabalin and 400mg ?v ibuprofen before surgery. Postoperative fentanyl consumption, additional analgesia requirements and PACU stay were recorded. Postoperative analgesia was performed with patient-controlled IV fentanyl. Results: VAS scores in the group PI were statistically lower at PACU, 1and 2 hours at rest, at PACU, 1, 2, 4, 12 and 24 hours on movement compared to the group P (P < 0.05). Opioid consumption was statistically significantly higher in the group P compared to the group PI (130.17 ± 60.27 vs 78.45 ± 60.40 μq, respectively, P < 0.001) and reduced in the 4th 24 hours by 55% in group PI. Rescue analgesia usage was statistically significantly higher in the group P than in the group PI (16/29 vs 7/29, respectively, P < 0.001). Four patient in the group PI did not need any opioid drug. Besides, PACU stay was shorter in the group PI than the group P (10.62 ± 2.38 vs 15.59 ± 2.11 min, respectively, P < 0.001). Conclusion: Preemptive pregabalin plus ?v ibuprofen in laparoscopic cholecystectomy reduced postoperative opioid consumption. This multimodal analgesic aproach generated lower pain scores in the postoperative period.  相似文献   
9.
Large epidemiological (population-based) studies conclude that psoriasis increases the risk of type 2 diabetes (T2D). Our primary objective was to find out whether data from clinical studies support the notion of shared disease mechanisms in psoriasis and T2D. For this purpose, we reviewed clinical studies investigating glucose metabolism in patients with psoriasis. We also present existing theories of how psoriasis might lead to type 2 diabetes. Twenty-six clinical studies reporting on insulin resistance, glucose tolerance or insulin secretion were eligible for review. Less than half of the studies showed results that suggest a defective glucose metabolism in patients with psoriasis. Overall, the studies lacked information on how known risk-factors for type 2 diabetes had been taken into account in the study. Furthermore, research methods varied and in all but one study, they might not have been appropriate to detect early and subtle defects in glucose metabolism. The results of clinical studies investigating glucose metabolism in patients with psoriasis are conflicting and presently it seems presumptuous to firmly conclude that patients with psoriasis share disease mechanisms with people with type 2 diabetes. However, seen in conjunction with the epidemiological literature and the proposed theories of shared disease mechanisms, there is ample basis for further research in this area. New studies using sound methods and elaborate research techniques are needed to learn more about glucose metabolism in patients with psoriasis.  相似文献   
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