全文获取类型
收费全文 | 1991篇 |
免费 | 141篇 |
国内免费 | 44篇 |
专业分类
耳鼻咽喉 | 6篇 |
儿科学 | 73篇 |
妇产科学 | 54篇 |
基础医学 | 265篇 |
口腔科学 | 58篇 |
临床医学 | 242篇 |
内科学 | 429篇 |
皮肤病学 | 45篇 |
神经病学 | 109篇 |
特种医学 | 152篇 |
外科学 | 265篇 |
综合类 | 48篇 |
预防医学 | 128篇 |
眼科学 | 61篇 |
药学 | 159篇 |
中国医学 | 14篇 |
肿瘤学 | 68篇 |
出版年
2024年 | 4篇 |
2023年 | 40篇 |
2022年 | 53篇 |
2021年 | 76篇 |
2020年 | 60篇 |
2019年 | 72篇 |
2018年 | 96篇 |
2017年 | 63篇 |
2016年 | 75篇 |
2015年 | 72篇 |
2014年 | 106篇 |
2013年 | 123篇 |
2012年 | 142篇 |
2011年 | 137篇 |
2010年 | 105篇 |
2009年 | 84篇 |
2008年 | 78篇 |
2007年 | 98篇 |
2006年 | 81篇 |
2005年 | 49篇 |
2004年 | 43篇 |
2003年 | 29篇 |
2002年 | 26篇 |
2001年 | 15篇 |
2000年 | 13篇 |
1999年 | 36篇 |
1998年 | 38篇 |
1997年 | 38篇 |
1996年 | 39篇 |
1995年 | 25篇 |
1994年 | 34篇 |
1993年 | 21篇 |
1992年 | 12篇 |
1991年 | 9篇 |
1990年 | 10篇 |
1989年 | 23篇 |
1988年 | 26篇 |
1987年 | 14篇 |
1986年 | 16篇 |
1985年 | 13篇 |
1984年 | 9篇 |
1983年 | 7篇 |
1982年 | 12篇 |
1981年 | 13篇 |
1980年 | 12篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1976年 | 8篇 |
1975年 | 7篇 |
1969年 | 2篇 |
排序方式: 共有2176条查询结果,搜索用时 31 毫秒
1.
2.
3.
Afsaneh Amouei Mahmood Moosazadeh Tooran Nayeri chegeni Shahabeddin Sarvi Azadeh Mizani Mehdi Pourasghar Saeed Hosseini Teshnizi Zahra Hosseininejad Samira Dodangeh Abdolsattar Pagheh Amir Hossein Pourmand Ahmad Daryani 《Transboundary and Emerging Diseases》2020,67(5):1847-1860
The World Health Organization has reported an annual global suicide rate of 14.5 per 100,000 people. On the other hand, it is estimated that approximately one‐third of the global population are infected with Toxoplasma gondii (T. gondii) parasite. It is widely assumed that microbial pathogens, such as T. gondii, are probably associated with affective and behavioural modulation. The present article aimed to assess the proposed role of toxoplasmosis in raising the risk of suicidal ideation (SI) and suicide attempts (SA) using the available epidemiological data. Seven major electronic databases and the Internet search engine Google were searched for all the studies published between the 1st of January 1950 and 31st of October 2019. The heterogeneity and the risk of bias within and across studies were assessed. Following data extraction, pooled odds ratios (ORs) with 95% confidence interval (CI) across studies were calculated using the random‐effects models. A total number of 9,696 articles were screened and 27 studies were regarded as eligible in our systematic review (SI with five papers and 22 papers on SA). A significant association was detected between antibodies against T. gondii with TA (ORs = 1.57; 95% confidence interval [CI] 1.23–2.00, p = .000). Exploration of the association between T. gondii and SA yielded a positive effect of seropositivity for IgG antibodies but not IgM. Despite the limited number of studies, a statistical association was detected between suicidal behaviours and infection with latent T. gondii. 相似文献
4.
5.
6.
7.
We used arthrotomography to study the glenoid labrum in 114 patients. Sixty-nine of the patients had anatomic instability of the shoulder (including recurrent dislocation and subluxation of the shoulder), and 45 patients had functional instability of the shoulder (denoted by chronic pain, clicking of the joint, and the sensation that an unstable condition exists without the objective signs of it). Labral tears were revealed arthrotomographically in 86% of the patients with anatomic instability, while only 40% of the patients with functional instability had labral abnormalities, and these were primarily of minor severity. Fifty-six patients (44 of whom had anatomic instability; 12, functional instability) required surgery. The surgical findings were correlated with the arthrotomographic findings, and no false-positive results were revealed. However, arthrotomography demonstrated only part of the pathologic condition of two patients. These results confirm that there is a strong correlation between labral pathologic conditions and anatomic instability of the shoulder. Arthrotomographic studies have a great impact on the selection of therapy in cases of both anatomic and functional instability of the shoulder. 相似文献
8.
Hausegger KA; Cragg AH; Lammer J; Lafer M; Fluckiger F; Klein GE; Sternthal MH; Pilger E 《Radiology》1994,190(1):199
9.
Rosenberg ZS; Jahss MH; Noto AM; Shereff MJ; Cheung Y; Frey CC; Norman A 《Radiology》1988,167(2):489-493
Computed tomography (CT) was performed in 42 patients with 49 clinically suspected tears of the posterior tibial tendon. Twenty-eight of the 49 suspected tears were subsequently surgically explored and repaired. Three patterns of tendon abnormalities were recognized on CT scans: type I-intact, hypertrophied, heterogeneous tendon; type II-attenuated tendon; and type III-absence of a portion of a tendon. Types I and II correlated with partial rupture seen during surgery, and type III correlated with complete rupture of the tendon. CT findings were accurate in 96% of the patients who underwent surgery. In four cases (14%), tendon rupture was seen on CT scans, but the extent of the injury was underestimated and the rupture was misclassified. Reactive periostitis of the distal tibia was seen in 71% of diseased tendons and may represent an important factor in the diagnosis of tendon rupture. 相似文献
10.