全文获取类型
| 收费全文 | 3218篇 |
| 免费 | 154篇 |
| 国内免费 | 19篇 |
专业分类
| 耳鼻咽喉 | 31篇 |
| 儿科学 | 70篇 |
| 妇产科学 | 42篇 |
| 基础医学 | 306篇 |
| 口腔科学 | 128篇 |
| 临床医学 | 173篇 |
| 内科学 | 1089篇 |
| 皮肤病学 | 73篇 |
| 神经病学 | 176篇 |
| 特种医学 | 186篇 |
| 外科学 | 468篇 |
| 综合类 | 11篇 |
| 一般理论 | 1篇 |
| 预防医学 | 75篇 |
| 眼科学 | 33篇 |
| 药学 | 199篇 |
| 中国医学 | 4篇 |
| 肿瘤学 | 326篇 |
出版年
| 2023年 | 19篇 |
| 2022年 | 23篇 |
| 2021年 | 130篇 |
| 2020年 | 62篇 |
| 2019年 | 83篇 |
| 2018年 | 97篇 |
| 2017年 | 72篇 |
| 2016年 | 93篇 |
| 2015年 | 86篇 |
| 2014年 | 92篇 |
| 2013年 | 154篇 |
| 2012年 | 228篇 |
| 2011年 | 229篇 |
| 2010年 | 111篇 |
| 2009年 | 114篇 |
| 2008年 | 200篇 |
| 2007年 | 225篇 |
| 2006年 | 212篇 |
| 2005年 | 218篇 |
| 2004年 | 213篇 |
| 2003年 | 201篇 |
| 2002年 | 201篇 |
| 2001年 | 24篇 |
| 2000年 | 28篇 |
| 1999年 | 20篇 |
| 1998年 | 26篇 |
| 1997年 | 30篇 |
| 1996年 | 23篇 |
| 1995年 | 16篇 |
| 1994年 | 21篇 |
| 1993年 | 11篇 |
| 1992年 | 5篇 |
| 1991年 | 11篇 |
| 1990年 | 9篇 |
| 1989年 | 12篇 |
| 1988年 | 12篇 |
| 1987年 | 9篇 |
| 1986年 | 8篇 |
| 1985年 | 6篇 |
| 1984年 | 8篇 |
| 1983年 | 10篇 |
| 1982年 | 8篇 |
| 1981年 | 5篇 |
| 1980年 | 10篇 |
| 1978年 | 2篇 |
| 1977年 | 2篇 |
| 1975年 | 3篇 |
| 1962年 | 1篇 |
| 1960年 | 1篇 |
| 1959年 | 1篇 |
排序方式： 共有3391条查询结果，搜索用时 15 毫秒
1.
2.
Left Atrial Appendage Flow Velocity and Time from P‐Wave Onset to Tissue Doppler–Derived A' Predict Atrial Fibrillation Recurrence after Radiofrequency Catheter Ablation 
下载免费PDF全文
下载免费PDF全文 Keiko Fukushima M.D. Ph.D. Noritoshi Fukushima M.D. Ph.D. Koichiro Ejima M.D. Ph.D. Ken Kato M.D. Yasuto Sato Ph.D. Shoko Uematsu M.D. Kotaro Arai M.D. Ph.D. Tetsuyuki Manaka M.D. Ph.D. Atsushi Takagi M.D. Ph.D. Kyomi Ashihara M.D. Ph.D. Morio Shoda M.D. Ph.D. Nobuhisa Hagiwara M.D. Ph.D. 《Echocardiography (Mount Kisco, N.Y.)》2015,32(7):1101-1108
3.
4.
Shingo Hashimoto Masaki Katsurada Rie Muramatsu Kumiko Asai Kenichiro Tanaka Kensuke Hayashi Yoshiaki Kibe Koichiro Nakajima Yukiko Hattori Hiromitsu Iwata Jun-etsu Mizoe Hiroyuki Ogino Yuta Shibamoto 《Practical radiation oncology》2019,9(2):e149-e155
Purpose
Suppression of respiratory movement of the liver would be desirable for high-precision radiation therapy for liver tumors. We aimed to investigate the effect of our original device-free compressed shell fixation method and breathing instruction on suppression of respiratory movement. The characteristics of liver motion based on the movement of a fiducial marker were also analyzed.Methods and Materials
First, respiratory amplitudes of the liver with the device-free compressed shell were analyzed from the data of 146 patients. The effect of this shell fixing method on liver movement was evaluated. Second, as another cohort study with 166 patients, interfractional internal motion of the liver for patients fixed in the shell was calculated using the fiducial marker coordinate data of images for position setting before daily irradiation. Third, in another 12 patients, intrafractional internal motion was calculated from the fiducial marker coordinate data using x-ray images before and after irradiation.Results
The median respiratory movement without the shell, after fixing with the shell, and after instructing on the breathing method with the shell was 14.2 (interquartile range, 10.7-19.8), 11.5 (8.6-17.5), and 10.4 mm (7.3-15.8), respectively. Systematic and random errors of interfractional internal motion were all ≤2 mm in the left-right and anteroposterior directions and 3.7 and 3.0 mm, respectively, in the craniocaudal direction. Systematic and random errors of intrafractional internal motion were all ≤1.3 mm in the left-right and anteroposterior directions and 0.8 and 2.4 mm, respectively, in the craniocaudal direction.Conclusions
The device-free compressed shell fixation method was effective in suppressing the respiratory movement of the liver. Irradiation position matching using the fiducial marker can correct the interfractional internal motion on each day, which would contribute to the reduction of the margin to be given around the target. 相似文献5.
6.
7.
Tomoe Koizumi PhD Yodo Sugishita MD PhD Yuki Suzuki-Takahashi MD PhD Kazuko Nara MA Tomoko Miyagawa MA Misako Nakajima MA Kouhei Sugimoto MD PhD Manabu Futamura MD PhD Tatsuro Furui MD PhD Yasushi Takai MD PhD Hiroshi Matsumoto MD PhD Hideko Yamauchi MD Shinji Ohno MD PhD Akemi Kataoka MD PhD Kiyotaka Kawai MD PhD Eisuke Fukuma MD PhD Hiroko Nogi MD PhD Koichiro Tsugawa MD PhD Nao Suzuki MD PhD 《Cancer》2023,129(16):2568-2580
8.
9.
10.
Incidence of urethral stricture after bipolar transurethral resection of the prostate using TURis: results from a randomised trial 下载免费PDF全文
下载免费PDF全文