全文获取类型
收费全文 | 10794篇 |
免费 | 628篇 |
国内免费 | 50篇 |
专业分类
耳鼻咽喉 | 79篇 |
儿科学 | 158篇 |
妇产科学 | 256篇 |
基础医学 | 1498篇 |
口腔科学 | 241篇 |
临床医学 | 792篇 |
内科学 | 2584篇 |
皮肤病学 | 327篇 |
神经病学 | 835篇 |
特种医学 | 573篇 |
外科学 | 1805篇 |
综合类 | 28篇 |
一般理论 | 1篇 |
预防医学 | 293篇 |
眼科学 | 137篇 |
药学 | 675篇 |
中国医学 | 17篇 |
肿瘤学 | 1173篇 |
出版年
2023年 | 87篇 |
2022年 | 183篇 |
2021年 | 310篇 |
2020年 | 174篇 |
2019年 | 196篇 |
2018年 | 246篇 |
2017年 | 203篇 |
2016年 | 204篇 |
2015年 | 259篇 |
2014年 | 305篇 |
2013年 | 380篇 |
2012年 | 592篇 |
2011年 | 589篇 |
2010年 | 305篇 |
2009年 | 237篇 |
2008年 | 490篇 |
2007年 | 471篇 |
2006年 | 436篇 |
2005年 | 452篇 |
2004年 | 430篇 |
2003年 | 431篇 |
2002年 | 418篇 |
2001年 | 331篇 |
2000年 | 392篇 |
1999年 | 264篇 |
1998年 | 95篇 |
1997年 | 74篇 |
1996年 | 86篇 |
1995年 | 68篇 |
1994年 | 74篇 |
1993年 | 54篇 |
1992年 | 219篇 |
1991年 | 226篇 |
1990年 | 196篇 |
1989年 | 242篇 |
1988年 | 206篇 |
1987年 | 207篇 |
1986年 | 181篇 |
1985年 | 149篇 |
1984年 | 96篇 |
1983年 | 80篇 |
1982年 | 47篇 |
1979年 | 75篇 |
1978年 | 67篇 |
1977年 | 50篇 |
1975年 | 48篇 |
1974年 | 51篇 |
1972年 | 59篇 |
1971年 | 55篇 |
1968年 | 50篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Yohei Tomaru Hiroshi Kamada Yuta Tsukagoshi Shogo Nakagawa Kenta Tanaka Ryoko Takeuchi Yuki Mataki Shumpei Miyakawa Masashi Yamazaki 《Journal of orthopaedic science》2019,24(1):159-165
Background
On April 1, 2016, the Ministerial ordinance was enforced, and musculoskeletal examination of the extremities was made mandatory. From 2008, the University of us started musculoskeletal direct examination. To expand the examination, from 2016, we started to use the marksheet-type questionnaire. This study aimed to report the results of a musculoskeletal examination and investigate the association between musculoskeletal examination and age/gender and reports the reliability of the collected questionnaire data.Methods
Direct musculoskeletal examination was performed in K school by 7 orthopedic surgeons. A marksheet-type screening questionnaire was distributed to all the elementary and junior high school students in Tsukuba and Hitachiomiya cities. The rates of abnormal findings for scoliosis, standing flexion, full squatting with the heels on the floor, general joint laxity, and standing on one leg, torticollis, and flat feet were calculated. We compared the results of the questionnaire and direct examination and calculated sensitivity, specificity, and odds ratio.Results
A total of 1844 students in K school had direct examination, and 22,494 questionnaires were able to correct in Tsukuba and Hitachiomiya cities. The rates of abnormal findings in direct examination/questionnaire in scoliosis, standing flexion, full squat, general joint laxity, standing on one leg, torticollis and flat foot were 18.7% (344/1842)/5.1% (1094/21441), 20.2% (372/1841)/26.6% (5817/22078), 6.2% (114/1832)/6.9% (1516/22101), 7.5% (1648/22252), 4.9% (1100/22077), 2.2% (31/1844)/1.2% (272/21687), and 12.5% (231/1842)/8.7% (1785/20871), respectively. Sensitivities of the questionnaire for scoliosis, stand flexion, full squatting, torticollis, and flat feet were 16.8% (53/316), 67.9% (250/368), 48.2% (55/114), 18.9% (7/37), and 32.2% (65/202), respectively.Conclusion
We reported the result of musculoskeletal examination. Accuracy and reliability of this questionnaire were not satisfactory. To perform high quality musculoskeletal examinations, we will aim to increase the quality of screening methods. 相似文献3.
Takahiro Namiki Chika Takano Ryoji Aoki Quang Duy Trinh Ichiro Morioka Satoshi Hayakawa 《Congenital anomalies》2022,62(1):38-41
Congenital rubella syndrome (CRS) results from maternal rubella virus infection in early pregnancy. Abnormal neuroimaging findings have been analyzed in a small number of CRS patients in the past; however, their clinical significance has been poorly addressed. Therefore, we have investigated the neuroimaging findings of 31 patients with CRS from previous studies. The most common finding was parenchymal calcification, which was observed in 18 of 31 patients (58.1%). A multivariable logistic regression model showed that it was associated with psychomotor or mental retardation (p = 0.018), suggesting that parenchymal calcification in CRS could be a prognostic factor. 相似文献
4.
5.
6.
7.
8.
9.
Yuki Asada Kazuaki Kanda Kazuyuki Ozeki Toshiro Tanaka Yohei Mizuta Shigeru Kohno 《Nihon Shokakibyo Gakkai zasshi》2006,103(12):1372-1376
Two patients with mesenteric panniculitis are presented. In the first patient, a provisional diagnosis of ileus was made, based on the clinical features and imaging data. Laparotomic findings showed that the ileum was bound tightly by a fibrous strip and dilated, with thickened and swollen mesentery. Incision of the fibrous strip was performed, and the clinical symptoms were improved. The second patient was strongly suspected to have mesenteric panniculitis, from characteristic features on abdominal computed tomography and barium enema. Conservative therapy was effective in this case. We emphasize the variety of clinical courses in mesenteric panniculitis, requiring selection of the most suitable treatment. 相似文献
10.
Masahiro Yamauchi Hiroko Kusano Etsuko Saito Takeshi Iwata Masashi Nakakura Yasuki Kato Takaaki Uochi Shiro Akinaga Noboru Aoki 《Journal of controlled release》2006,114(2):268-275
Previously, we demonstrated that wrapping dextran fluorescein anionic/cationic lipid complexes with neutral lipids produced a stable formulation that markedly increased the duration of the compound in plasma after intravenous administration to rats. The improved drug-delivery properties of the wrapped liposomes (WL) relative to other formulations suggested that this technology could offer important advantages for the administration of other polyanionic drugs, including antisense oligodeoxynucleotides (ODN). In the present study, we investigated the value of WL for formulating fluorescence-labeled phosphorothioated ODN (F-ODN). WL encapsulating F-ODN/cationic lipid complexes were prepared efficiently using similar methodology to that used in our earlier study. Studies confirmed that these WL were stable in vitro. Following intravenous administration to mice, free F-ODN and naked F-ODN/cationic lipid complexes were rapidly eliminated whereas administration of the WL resulted in high blood concentrations of drug that were maintained for several hours. Additional studies were conducted in mice that were inoculated with tumor cells (Caki-1 xenograft model, human kidney); in these experiments, intravenous administration of WL delivered 13 times more F-ODN to the tumor site than achieved after injection of free F-ODN. 相似文献