全文获取类型
收费全文 | 11466篇 |
免费 | 878篇 |
国内免费 | 140篇 |
专业分类
耳鼻咽喉 | 89篇 |
儿科学 | 343篇 |
妇产科学 | 266篇 |
基础医学 | 1285篇 |
口腔科学 | 175篇 |
临床医学 | 1089篇 |
内科学 | 2431篇 |
皮肤病学 | 150篇 |
神经病学 | 822篇 |
特种医学 | 437篇 |
外科学 | 1785篇 |
综合类 | 275篇 |
一般理论 | 7篇 |
预防医学 | 694篇 |
眼科学 | 978篇 |
药学 | 771篇 |
中国医学 | 71篇 |
肿瘤学 | 816篇 |
出版年
2023年 | 104篇 |
2022年 | 141篇 |
2021年 | 294篇 |
2020年 | 186篇 |
2019年 | 270篇 |
2018年 | 310篇 |
2017年 | 208篇 |
2016年 | 204篇 |
2015年 | 257篇 |
2014年 | 324篇 |
2013年 | 410篇 |
2012年 | 621篇 |
2011年 | 685篇 |
2010年 | 408篇 |
2009年 | 368篇 |
2008年 | 606篇 |
2007年 | 731篇 |
2006年 | 674篇 |
2005年 | 654篇 |
2004年 | 589篇 |
2003年 | 543篇 |
2002年 | 499篇 |
2001年 | 448篇 |
2000年 | 399篇 |
1999年 | 326篇 |
1998年 | 122篇 |
1997年 | 98篇 |
1996年 | 99篇 |
1995年 | 74篇 |
1994年 | 71篇 |
1993年 | 77篇 |
1992年 | 181篇 |
1991年 | 176篇 |
1990年 | 156篇 |
1989年 | 121篇 |
1988年 | 131篇 |
1987年 | 145篇 |
1986年 | 102篇 |
1985年 | 96篇 |
1984年 | 61篇 |
1983年 | 72篇 |
1982年 | 53篇 |
1981年 | 45篇 |
1980年 | 44篇 |
1979年 | 67篇 |
1978年 | 49篇 |
1977年 | 24篇 |
1976年 | 15篇 |
1973年 | 17篇 |
1972年 | 15篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
3.
4.
5.
Prevalence of Potentially Inappropriate Prescribing Among Hong Kong Older Adults: A Comparison of the Beers 2003, Beers 2012, and Screening Tool of Older Person's Prescriptions and Screening Tool to Alert doctors to Right Treatment Criteria 下载免费PDF全文
6.
Esophageal foreign body causing direct aortic injury. 总被引:4,自引:0,他引:4
Foreign bodies in the esophagus are uncommon causes of esophageal perforation. Many nonperforating cases are successfully managed by flexible gastroscopy. However, complicated foreign bodies such as those that result in esophageal perforation and vascular injury are best managed surgically. Gastroscopy remains the primary method of diagnosis. A case of a 59-year-old woman who developed retrosternal and intrascapular pain, odynophagia and hematemesis after eating fish is reported. Flexible gastroscopy showed arterial bleeding from the midthoracic esophagus. Computed tomography scan localized a 3 cm fish bone perforating the esophagus with surrounding hematoma. An aortogram did not reveal an actively bleeding aortoesophageal fistula. The fish bone was surgically removed and the patient recovered with no postoperative complications. This case illustrates the importance of early consideration for surgical intervention when confronted with a brisk arterial bleed from the esophagus with suggestive history of foreign body ingestion. 相似文献
7.
8.
9.
10.
Phoebe S. Y. Lo Michael C. F. Tong Dennis A. Revicki Ching Chyi Lee John K. S. Woo Henry C. K. Lam C. Andrew van Hasselt 《Quality of life research》2006,15(5):877-887
Background: The Rhinitis Symptom Utility Index (RSUI), originally developed in the United States, consists of a patient-preference weighting
scheme and a 10-item questionnaire measuring the severity and frequency of rhinitis related symptoms over a 14-day period.
This study aimed to determine whether the Chinese RSUI could adopt the US-based multi-attribute utility function (MAUF) in
scoring rhinitis symptoms. Methods: In a Hong Kong study, 116 Chinese adults with allergic rhinitis completed the RSUI questionnaire and 36-item Short-Form
Health Survey (SF-36) after they had been seen by two otorhinolaryngologists for disease-severity ratings. Respondents then
completed computer-administered direct preference measures, i.e., visual analogue scale (VAS) and standard gamble (SG) assessments.
The VAS and SG data were used to estimate a MAUF for the Chinese-based RSUI. Results: The derived MAUF was somewhat different than the one developed for the US RSUI. Test–retest reliability for the Chinese
RSUI was satisfactory (ICC = 0.71, p<0.001). Scores differentiated among cases with mild, moderate, and severe symptoms (p<0.001); and between those who did and did not require medications to control symptoms (p = 0.031). Findings were significantly correlated with SF-36 domain scores (r = 0.19 to 0.37; p=0.041 to <0.001). When the US-based scoring function was applied to the Chinese subjects, the resulting mean RSUI score was
significantly lower (p<0.001). Comparisons between directly measured VAS and SG scores between the US and Chinese samples, demonstrated significant
differences (all p<0.05), with the US subjects consistently rating rhinitis symptoms as worse than Chinese subjects. Conclusions: The Chinese RSUI has good measurement properties that reflect patient preferences from the Chinese. Results suggest that
there are differences in preference rating between US and Chinese subjects and that use of the US-based preference function
for the RSUI would bias the measurement of rhinitis symptom outcomes in Chinese subjects. 相似文献