全文获取类型
收费全文 | 16897篇 |
免费 | 943篇 |
国内免费 | 167篇 |
专业分类
耳鼻咽喉 | 199篇 |
儿科学 | 309篇 |
妇产科学 | 309篇 |
基础医学 | 2157篇 |
口腔科学 | 322篇 |
临床医学 | 994篇 |
内科学 | 4456篇 |
皮肤病学 | 327篇 |
神经病学 | 1001篇 |
特种医学 | 578篇 |
外科学 | 3318篇 |
综合类 | 100篇 |
预防医学 | 512篇 |
眼科学 | 178篇 |
药学 | 955篇 |
中国医学 | 31篇 |
肿瘤学 | 2261篇 |
出版年
2023年 | 139篇 |
2022年 | 291篇 |
2021年 | 486篇 |
2020年 | 273篇 |
2019年 | 343篇 |
2018年 | 437篇 |
2017年 | 344篇 |
2016年 | 432篇 |
2015年 | 467篇 |
2014年 | 599篇 |
2013年 | 678篇 |
2012年 | 1089篇 |
2011年 | 1201篇 |
2010年 | 640篇 |
2009年 | 551篇 |
2008年 | 991篇 |
2007年 | 1073篇 |
2006年 | 1077篇 |
2005年 | 1043篇 |
2004年 | 1026篇 |
2003年 | 971篇 |
2002年 | 888篇 |
2001年 | 265篇 |
2000年 | 333篇 |
1999年 | 284篇 |
1998年 | 201篇 |
1997年 | 177篇 |
1996年 | 173篇 |
1995年 | 134篇 |
1994年 | 99篇 |
1993年 | 108篇 |
1992年 | 128篇 |
1991年 | 119篇 |
1990年 | 123篇 |
1989年 | 105篇 |
1988年 | 109篇 |
1987年 | 63篇 |
1986年 | 55篇 |
1985年 | 75篇 |
1984年 | 55篇 |
1983年 | 32篇 |
1982年 | 28篇 |
1981年 | 23篇 |
1980年 | 22篇 |
1979年 | 32篇 |
1978年 | 20篇 |
1977年 | 17篇 |
1976年 | 21篇 |
1968年 | 15篇 |
1967年 | 16篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
3.
4.
Masaru Sasaki Tsuyoshi Takahashi Soichiro Funaki Koji Tanaka Yasuhiro Miyazaki Naoko Ose Tomoki Makino Yukinori Kurokawa Makoto Yamasaki Kiyokazu Nakajima Yasushi Shintani Masaki Mori Yuichiro Doki 《Asian journal of endoscopic surgery》2021,14(1):116-119
We report a case of a diaphragmatic hernia after a heart transplant operation. A 43-year-old woman, who underwent orthotropic heart transplantation for hypertrophic cadiomyopathy two year earlier, presented with vomiting and epigastric pain. A computed tomography scan showed that the stomach and transverse colon were dislocated in the left thoracic cavity. We diagnosed left diaphragmatic hernia incarceration and performed laparoscopic repair of the diaphragmatic hernia. A 12 × 8 cm diaphragmatic defect was found intraoperatively on the ventrolateral aspect of the left diaphragm, and the stomach with volvulus had herniated into the thorax through the defect. The hernia was considered to be iatrogenic. The diaphragmatic defect was large, and the diaphragm was thinning. We closed the defect by mesh repair. Laparoscopic mesh repair of the diaphragmatic hernia could be performed safely and with minimal invasiveness. 相似文献
5.
6.
7.
Koji Matsumoto Masahiro Hoshino Keita Omori Hidetoshi Igarashi Hiromi Matsuzaki Yasuaki Tokuhashi 《Journal of orthopaedic science》2021,26(4):538-542
BackgroundAdjacent vertebral fracture (AVF) is a major complication following Balloon Kyphoplasty (BKP). There is no scoring system for predicting AVF using only preoperative elements. The purposes of this study were to develop a scoring system for predicting early AVF after BKP based on preoperative factors and to investigate the appropriate surgical indication for BKP.MethodsOf 220 patients who underwent BKP at a single institution since 2011, 65 patients over the age of 60 who had undergone a standing whole spine X-ray preoperatively were enrolled. Factors affecting the occurrence of early AVF were examined. A scoring system was created consisting of the factors exhibiting significant differences, and the correlation between the total score and the incidence of early AVF was investigated.ResultsTwenty of the 65 patients (30.8%) had early AVF. In a univariate analysis, age, previous vertebral fracture, pelvic tilt, and Local kyphosis significantly influenced early AVF. In a multivariate logistic regression analysis, age had an odds ratio of 1.136 (95% CI 1.001–1.289), previous vertebral fractures 4.181 (1.01–17.309), and Local kyphosis 1.103 (1.021–1.191). The scoring system was set as follows: ①Age (<75 years: 0 points(P), 75years≦: 1P), ②The number of previous vertebral fractures (0: 0 P, 1: 1P, 2: 2P, 3 or more: 3P), and ③Local kyphosis (<10°: 0P, 10°≦: 1P). There was a correlation between the total score and the incidence of early AVF (r = 0.812, 1P = 0.05). The incidence of early AVF was 6.4% (2 cases/31 cases) for a score of ≦1P and 54.5% (18 cases/33 cases) for a score of ≧2P.ConclusionsThere was a correlation between the total score and the incidence of early AVF. A score of 1 point or less may represent the appropriate surgical indication for BKP. 相似文献
8.
Koji Saito Takashi Saito Sumio Kawada 《Nihon Shokakibyo Gakkai zasshi》2006,103(10):1176, 1179-1176, 1180
9.
10.
Mamoru Uemura MD Masahiko Higashiyama MD Jiro Okami MD Kazuyuki Oda MD Koji Takami MD Ken Kodama MD 《General thoracic and cardiovascular surgery》2006,54(2):289-292
We present a case of intrapulmonary metastasis developing 18 years after complete resection of thymoma. An 8 mm nodule in the lower lobe of the left lung was noted on chest X-ray in a 76-year-old woman who had undergone complete resection of Masaoka’s stage II thymoma 18 years earlier. Since the nodule grew to 17 mm during a 2-year follow-up, wedge resection was performed. The lesion was histologically diagnosed as an intrapulmonary metastasis from thymoma. Extremely late recurrence after complete resection of thymoma is discussed. 相似文献