全文获取类型
收费全文 | 329761篇 |
免费 | 19123篇 |
国内免费 | 547篇 |
专业分类
耳鼻咽喉 | 4675篇 |
儿科学 | 10925篇 |
妇产科学 | 10617篇 |
基础医学 | 49179篇 |
口腔科学 | 8590篇 |
临床医学 | 26514篇 |
内科学 | 63351篇 |
皮肤病学 | 7056篇 |
神经病学 | 24247篇 |
特种医学 | 13347篇 |
外国民族医学 | 44篇 |
外科学 | 51880篇 |
综合类 | 7887篇 |
现状与发展 | 1篇 |
一般理论 | 166篇 |
预防医学 | 20967篇 |
眼科学 | 7673篇 |
药学 | 23067篇 |
中国医学 | 856篇 |
肿瘤学 | 18389篇 |
出版年
2021年 | 2776篇 |
2019年 | 2669篇 |
2018年 | 4163篇 |
2017年 | 3119篇 |
2016年 | 3662篇 |
2015年 | 4043篇 |
2014年 | 5304篇 |
2013年 | 8105篇 |
2012年 | 10533篇 |
2011年 | 10948篇 |
2010年 | 7050篇 |
2009年 | 6332篇 |
2008年 | 10029篇 |
2007年 | 11101篇 |
2006年 | 10810篇 |
2005年 | 10354篇 |
2004年 | 10095篇 |
2003年 | 9505篇 |
2002年 | 9140篇 |
2001年 | 14575篇 |
2000年 | 15010篇 |
1999年 | 12622篇 |
1998年 | 3477篇 |
1997年 | 3156篇 |
1996年 | 2986篇 |
1995年 | 2831篇 |
1994年 | 2637篇 |
1992年 | 9262篇 |
1991年 | 9258篇 |
1990年 | 9040篇 |
1989年 | 8847篇 |
1988年 | 8048篇 |
1987年 | 7793篇 |
1986年 | 7357篇 |
1985年 | 7096篇 |
1984年 | 5161篇 |
1983年 | 4449篇 |
1982年 | 2603篇 |
1979年 | 4711篇 |
1978年 | 3416篇 |
1977年 | 2901篇 |
1976年 | 2639篇 |
1975年 | 2972篇 |
1974年 | 3537篇 |
1973年 | 3519篇 |
1972年 | 3276篇 |
1971年 | 3124篇 |
1970年 | 2990篇 |
1969年 | 2755篇 |
1968年 | 2682篇 |
排序方式: 共有10000条查询结果,搜索用时 12 毫秒
21.
22.
23.
Characteristics of hyperparathyroid states in the Canadian multicentre osteoporosis study (CaMos) and relationship to skeletal markers
下载免费PDF全文
![点击此处可从《Clinical endocrinology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
24.
25.
26.
A. AbuKaraky M. Al Mousa O.A. Samara Z.H. Baqain 《International journal of oral and maxillofacial surgery》2021,50(6):798-800
Pseudoaneurysms in the external carotid artery system are rare, mostly reported in the superficial temporal and facial arteries. The bilateral sagittal split osteotomy has a low incidence of complications requiring emergency interventions. We report the case of a patient with acute bleeding from a pseudoaneurysm of the inferior alveolar artery diagnosed by angiography and treated successfully by super-selective embolization. 相似文献
27.
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
28.
Gastro-oesophageal reflux disease (GORD) is symptomatic reflux of gastric contents into the oesophagus. Factors predisposing to GORD are loss of the physiological antireflux barrier and anatomic abnormalities of the oesophagus or diaphragm. Conservative measures and medical management results in resolution of symptoms in a majority of children. Surgery is indicated in the event of failure of medical management or severe complications. Surgical procedures include open or laparoscopic fundoplication in children with normal neurology; fundoplication with or without vagotomy and pyloroplasty; surgical feeding jejunostomy and oesophago-gastric dissociation in the severely neurologically impaired children. 相似文献
29.
O.R. Mitchell R. Dave J. Bekker P.A. Brennan 《The British journal of oral & maxillofacial surgery》2021,59(3):384-385
The first COVID-19 vaccination was given in December 2020 and there is an effort to vaccinate the international population on a massive scale. Common side effects from the vaccine include headache and tiredness. Regional lymphadenopathy has been described in relation to other vaccines. We describe two cases of supraclavicular reactive lymphadenopathy presenting in patients who had the COVID vaccination in the ipsilateral arm. Awareness of this diagnosis is important for patients presenting to the neck lump clinic. 相似文献
30.
Chumakov E. M. Petrova N. N. Limankin O. V. Ashenbrenner Yu. V. 《Neuroscience and behavioral physiology》2022,52(1):45-51
Neuroscience and Behavioral Physiology - Objective. To determine the frequency, structure, and severity of cognitive impairments in patients with bipolar affective disorder (BAD) in remission.... 相似文献