全文获取类型
收费全文 | 2502篇 |
免费 | 112篇 |
国内免费 | 11篇 |
专业分类
耳鼻咽喉 | 22篇 |
儿科学 | 72篇 |
妇产科学 | 36篇 |
基础医学 | 361篇 |
口腔科学 | 30篇 |
临床医学 | 158篇 |
内科学 | 626篇 |
皮肤病学 | 12篇 |
神经病学 | 177篇 |
特种医学 | 61篇 |
外科学 | 389篇 |
综合类 | 7篇 |
预防医学 | 29篇 |
眼科学 | 17篇 |
药学 | 222篇 |
中国医学 | 11篇 |
肿瘤学 | 395篇 |
出版年
2023年 | 25篇 |
2022年 | 35篇 |
2021年 | 71篇 |
2020年 | 26篇 |
2019年 | 49篇 |
2018年 | 59篇 |
2017年 | 58篇 |
2016年 | 48篇 |
2015年 | 58篇 |
2014年 | 68篇 |
2013年 | 72篇 |
2012年 | 129篇 |
2011年 | 154篇 |
2010年 | 84篇 |
2009年 | 59篇 |
2008年 | 145篇 |
2007年 | 142篇 |
2006年 | 133篇 |
2005年 | 159篇 |
2004年 | 134篇 |
2003年 | 128篇 |
2002年 | 180篇 |
2001年 | 51篇 |
2000年 | 43篇 |
1999年 | 44篇 |
1998年 | 53篇 |
1997年 | 35篇 |
1996年 | 36篇 |
1995年 | 31篇 |
1994年 | 30篇 |
1993年 | 27篇 |
1992年 | 25篇 |
1991年 | 19篇 |
1990年 | 18篇 |
1989年 | 19篇 |
1988年 | 17篇 |
1987年 | 23篇 |
1986年 | 17篇 |
1985年 | 13篇 |
1984年 | 13篇 |
1983年 | 14篇 |
1982年 | 10篇 |
1981年 | 14篇 |
1980年 | 16篇 |
1978年 | 7篇 |
1976年 | 3篇 |
1975年 | 5篇 |
1973年 | 4篇 |
1972年 | 4篇 |
1971年 | 4篇 |
排序方式: 共有2625条查询结果,搜索用时 15 毫秒
41.
Nobuaki Sakamoto Huanhuan Hu Akiko Nanri Tetsuya Mizoue Masafumi Eguchi Takeshi Kochi Tohru Nakagawa Toru Honda Shuichiro Yamamoto Takayuki Ogasawara Naoko Sasaki Akiko Nishihara Teppei Imai Toshiaki Miyamoto Makoto Yamamoto Hiroko Okazaki Kentaro Tomita Akihiko Uehara Ai Hori Makiko Shimizu Taizo Murakami Keisuke Kuwahara Ami Fukunaga Isamu Kabe Tomofumi Sone Seitaro Dohi 《Journal of diabetes investigation.》2020,11(3):719-725
42.
43.
44.
Nobuaki Terakado Toshikazu Yoshimine Ryusei Kozawa Yoshihiro Takahashi Takumi Fujiwara 《RSC advances》2020,10(38):22352
Oxide glass is an industrial material with advantages such as optical transparency and shaping ability of the melt, but at the same time, it is a bad conductor of heat due to its disordered structures. Therefore, heat dissipation in glass components often becomes a problem and its applications to the thermal management has been limited to use as a heat insulator. To break this mold and to apply it to fields, e.g., transparent sealing materials, for which low thermal conductive glasses and organic polymers have been conventionally used, we fabricated an MgO-dispersed glass-ceramics in our previous work. It comprises MgO crystal and glass matrix and their reflective indices are matched, leading to optical transparency and improvement in thermal conductivity. Here we investigate the atomic-scale structures in the MgO-dispersed glass-ceramics by nuclear magnetic resonance, etc. and attempt to further improve the thermal conductivity and the transparency. As a result, we show an MgO-dispersed glass-ceramic with a thermal conductivity of 3.3 W (m−1 K−1), corresponding to 300% of that of the glass matrix, high optical transparency, and glass transition. This report highlights that our strategies pave the way for development of novel transparent, functional glass-ceramics.Oxide glass is an industrial material with advantages such as optical transparency and shaping ability of the melt, but at the same time, it is a bad conductor of heat due to its disordered structures. 相似文献
45.
46.
47.
Hideyo Tsutsui Kyoko Nomura Takayoshi Ohkubo Nobuaki Ozaki Masataka Kusunoki Tetsuya Ishiguro Yoshiharu Oshida 《Clinical and experimental nephrology》2016,20(2):187-194
Background
We previously demonstrated validation of the Comprehensive International Classification of Functioning, Disability and Health Core Set for Diabetes Mellitus (ICF-CS for DM) in patients with diabetic nephropathy (DMN). The objective of the present study was to identify differences in experience of physical and psychosocial problems between DMN patients with and without hemodialysis (HD), and diabetes patients without nephropathy using the ICF-CS for DM.Methods
A total of 302 diabetes outpatients (men, 68 %; mean age, 62 years) were interviewed using four components of the ICF-CS for DM including “Body functions”, “Body structures”, “Activities and participation”, and “Environmental factors”.Results
The mean number of categories in which difficulty was experienced in the four components was significantly greater in DMN patients with HD followed by DMN patients without HD, and diabetes patients without nephropathy (23.9 vs. 18.0 vs. 13.1, respectively). Multivariate logistic regression models revealed that, compared with diabetes patients without nephropathy, diabetes patients with nephropathy were more likely to have difficulty with physical problems and social activities and participation. Among DMN patients, dialysis patients were found to have larger numbers of problems, and face difficulty with employment status after adjusting for sex, age, type, and duration of diabetes.Conclusion
The results of this study using the ICF-CS for DM identified the areas for improvement among physical and psychosocial problems in DMN patients with and without HD in contrast to diabetes patients without nephropathy.48.
Nanosecond pulsed electric field incorporation technique to predict molecular mechanisms of teratogenicity and developmental toxicity of estradiol‐17β on medaka embryos 下载免费PDF全文
49.
Shiozaki H Abe S Tsumori N Shiozaki K Kaneko Y Ichinohe T 《Cranio : the journal of craniomandibular practice》2007,25(3):160-165
We performed macroscopic observations of the sphenomandibular ligaments, and measured the space that is surrounded by the mandibular ramus and the ligament by using computed tomography. The materials used in this study were 40 heads of 40 adult cadavers. The cadaver head was cut on the mid sagittal plane. The medial pterygoid muscles of the cadavers were removed to observe the ligaments. The attaching style of the sphenomandibular ligament to the mandibular ramus was classified into three types: Type I (5 in 40 samples; attached only to the mandibular lingula), Type II (12 in 40 samples; attached to the mandibular lingula and extended toward the rear part of the internal surface of the mandibular ramus), and Type III (23 in 40 samples; attached to the mandibular lingula and toward the posterior border of the mandibular ramus). There was no statistical difference in the length of the ligament among the three types. However, Type III showed the largest width, and the space was approximately eight and three times as large as those of Type I and II, respectively. This indicated that the Type III ligament covered a larger area over the mandibular foramen than Type I. These results suggest that the three-dimensional morphology of the sphenomandibular ligament, as represented by Type III, may affect the effectiveness of anesthesia. 相似文献
50.
Kimura Yuta Tsunedomi Ryouichi Yoshimura Kiyoshi Matsukuma Satoshi Shindo Yoshitaro Matsui Hiroto Tokumitsu Yukio Yoshida Shin Iida Michihisa Suzuki Nobuaki Takeda Shigeru Ioka Tatsuya Hazama Shoichi Nagano Hiroaki 《Annals of surgical oncology》2022,29(12):7423-7433
Annals of Surgical Oncology - Poor prognosis in liver cancer is due to its high frequency of intrahepatic metastasis. Cancer stem-like cells (CSLCs), which possess the properties of stemness, tumor... 相似文献