全文获取类型
收费全文 | 25460篇 |
免费 | 1245篇 |
国内免费 | 105篇 |
专业分类
耳鼻咽喉 | 333篇 |
儿科学 | 1411篇 |
妇产科学 | 621篇 |
基础医学 | 2791篇 |
口腔科学 | 576篇 |
临床医学 | 1516篇 |
内科学 | 5413篇 |
皮肤病学 | 809篇 |
神经病学 | 1568篇 |
特种医学 | 883篇 |
外科学 | 3212篇 |
综合类 | 824篇 |
一般理论 | 15篇 |
预防医学 | 1265篇 |
眼科学 | 1410篇 |
药学 | 2267篇 |
中国医学 | 180篇 |
肿瘤学 | 1716篇 |
出版年
2023年 | 172篇 |
2022年 | 426篇 |
2021年 | 868篇 |
2020年 | 427篇 |
2019年 | 552篇 |
2018年 | 709篇 |
2017年 | 491篇 |
2016年 | 620篇 |
2015年 | 578篇 |
2014年 | 927篇 |
2013年 | 1169篇 |
2012年 | 1575篇 |
2011年 | 1726篇 |
2010年 | 939篇 |
2009年 | 785篇 |
2008年 | 1182篇 |
2007年 | 1255篇 |
2006年 | 1234篇 |
2005年 | 1058篇 |
2004年 | 970篇 |
2003年 | 831篇 |
2002年 | 759篇 |
2001年 | 712篇 |
2000年 | 711篇 |
1999年 | 571篇 |
1998年 | 276篇 |
1997年 | 211篇 |
1996年 | 178篇 |
1995年 | 175篇 |
1994年 | 145篇 |
1993年 | 134篇 |
1992年 | 373篇 |
1991年 | 378篇 |
1990年 | 352篇 |
1989年 | 363篇 |
1988年 | 304篇 |
1987年 | 274篇 |
1986年 | 249篇 |
1985年 | 239篇 |
1984年 | 180篇 |
1983年 | 142篇 |
1981年 | 101篇 |
1979年 | 158篇 |
1978年 | 99篇 |
1977年 | 86篇 |
1975年 | 89篇 |
1974年 | 102篇 |
1973年 | 96篇 |
1972年 | 122篇 |
1970年 | 81篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
Osteoclastoma of the calvarial bone of membranous origin is a rare entity. This paper presents a case of osteoclastoma of the occipital bone and a brief review of literature. 相似文献
82.
Ossifying fibroma of the sellar turcica is extremely rare. There are only sporadic case reports in the literature. One such case simulating pituitary adenoma is presented in an 18-year-old girl. 相似文献
83.
Aerosol formulations to act as medicated aerosol dressings have been prepared with an aim of forming a protective film over the wound after spraying combining the properties of antiseptics and hemostatics. Chlorhexidine acetate along with three hemostatics namely zinc acetate, methyl cellulose and Calendula tincture were used for the formulations. The formulations were found to be satisfactory in their performance and purpose. 相似文献
84.
A female child with post-traumatic en coup de sabre type of morphoea (fronto-parietal circumscribed scleroderma) involving the left side of the forehead and face, who developed a Coat's disease-like fundus picture over the following two years, is being reported. 相似文献
85.
86.
87.
88.
89.
90.
The effects of two calcium channel blockers (verapamil and cinnarizine) were evaluated on diazepam withdrawal symptoms. Rats were made diazepam dependent by chronic treatment with daily injections of the drug, 20 mg/kg IP for 3 weeks. On abrupt termination of the drug, animals showed withdrawal hyperactivity that was assessed by autonomic, behavioural and motor signs. The peak effect was seen 3 days after the withdrawal of diazepam. On IP administration, verapamil and cinnarizine (10, 20 and 40 mg/kg) given on eight occasions at an interval of 12 h reversed the withdrawal-induced increase in spontaneous motor activity. Cinnarizine in higher doses (20 and 40 mg/kg) was found to be effective in suppressing the behavioural signs but verapamil did not show any protective effect against startle response and irritability. These results suggest that modulation of the calcium influx in the CNS might influence withdrawal.This study was presented in XIth International Congress of Pharmacology (IUPHAR) at Amsterdam (July 1–6, 1990) 相似文献