全文获取类型
收费全文 | 154699篇 |
免费 | 31448篇 |
国内免费 | 2403篇 |
专业分类
耳鼻咽喉 | 5192篇 |
儿科学 | 5437篇 |
妇产科学 | 2451篇 |
基础医学 | 3606篇 |
口腔科学 | 1840篇 |
临床医学 | 27009篇 |
内科学 | 48029篇 |
皮肤病学 | 7509篇 |
神经病学 | 15074篇 |
特种医学 | 6487篇 |
外科学 | 41603篇 |
综合类 | 253篇 |
现状与发展 | 72篇 |
一般理论 | 2篇 |
预防医学 | 7320篇 |
眼科学 | 3388篇 |
药学 | 1311篇 |
中国医学 | 23篇 |
肿瘤学 | 11944篇 |
出版年
2024年 | 685篇 |
2023年 | 4804篇 |
2022年 | 1207篇 |
2021年 | 3122篇 |
2020年 | 6060篇 |
2019年 | 2197篇 |
2018年 | 7458篇 |
2017年 | 7393篇 |
2016年 | 8490篇 |
2015年 | 8492篇 |
2014年 | 15560篇 |
2013年 | 15806篇 |
2012年 | 5709篇 |
2011年 | 5689篇 |
2010年 | 10507篇 |
2009年 | 14386篇 |
2008年 | 5997篇 |
2007年 | 4232篇 |
2006年 | 6707篇 |
2005年 | 4023篇 |
2004年 | 3298篇 |
2003年 | 2254篇 |
2002年 | 2311篇 |
2001年 | 3826篇 |
2000年 | 3036篇 |
1999年 | 3265篇 |
1998年 | 3705篇 |
1997年 | 3500篇 |
1996年 | 3393篇 |
1995年 | 3249篇 |
1994年 | 1974篇 |
1993年 | 1589篇 |
1992年 | 1404篇 |
1991年 | 1444篇 |
1990年 | 1081篇 |
1989年 | 1204篇 |
1988年 | 1047篇 |
1987年 | 887篇 |
1986年 | 914篇 |
1985年 | 742篇 |
1984年 | 585篇 |
1983年 | 543篇 |
1982年 | 544篇 |
1981年 | 425篇 |
1980年 | 380篇 |
1979年 | 329篇 |
1978年 | 351篇 |
1977年 | 419篇 |
1975年 | 296篇 |
1972年 | 311篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
21.
Alexandros Karabetsos MD Dr ; George Karachalios MD Dr ; Paraskevoula Bourlinou RN Nurse ; Asimina Reppa RN Nurse ; Rozeta Koutri MD Dr ; Androniki Fotiadou MD Dr 《Headache》1997,37(1):12-14
The efficacy and safety of ketoprofen and paracetamol were compared for the treatment of acute migraine in a randomized, double-blind study of 64 patients. Thirty-four patients received ketoprofen 100 mg intramuscularly, and 30 patients received paracetamol 500 mg intramuscularly. Partial or complete relief of pain and other symptoms was achieved 15 to 20 minutes after administration in the ketoprofen group and within 35 minutes in the paracetamol group. Complete relief of pain was achieved within 30 to 40 minutes after ketoprofen in 28 patients (82.5%) compared to 5 patients (17.5%) in the paracetamol group. Six of the patients treated with ketoprofen needed a second dose for complete relief of pain during the 4-hour follow-up period. Side effects were rare and minimal. Our findings suggest that ketoprofen produced statistically significant benefit in the treatment of acute migraine. 相似文献
22.
23.
24.
25.
26.
27.
28.
29.
David C. Cone MD Susan M. Nedza MD MBA James J. Augustine MD Steven J. Davidson MD MBA 《Academic emergency medicine》2002,9(11):1085-1090
This paper reports the proceedings of the discussion panel assigned to look at clinical aspects of quality in emergency medicine. One of the seven stated objectives of the Academic Emergency Medicine consensus conference on quality in emergency medicine was to educate emergency physicians regarding quality measures and quality improvement as essential aspects of the practice of emergency medicine. Another topic of interest was a discussion of the value of information technology in facilitating quality care in the clinical practice of emergency medicine. It is important to note that this is not intended to be a comprehensive review of this extensive topic, but instead is designed to report the discussion that occurred at this session of the consensus conference. 相似文献
30.
OBJECTIVE: To assess the outcome of the surgical treatment of patients who had adrenalectomy for phaeochromocytoma. DESIGN: Retrospective clinical study. SETTINGS: University hospital, Germany. SUBJECTS: 87 consecutive patients with phaeochromocytoma who were operated on. INTERVENTIONS: 29 flank and 58 transabdominal adrenalectomies between 1974 and 2000. RESULTS: The mean tumour diameter was 5 cm (range 2-13), and the mean weight 91 g (range 7-550). The postoperative hospital stay was 11 days. The flank incision entailed the shortest operating time (95 minutes). Two of the phaeochromocytomas were malignant. There were two wound infections but no deaths. With a correct selection of patients, a flank incision is safe. Endoscopic retroperitoneal adrenalectomies should be preferred. 相似文献