全文获取类型
收费全文 | 7706篇 |
免费 | 302篇 |
国内免费 | 37篇 |
专业分类
耳鼻咽喉 | 26篇 |
儿科学 | 114篇 |
妇产科学 | 112篇 |
基础医学 | 780篇 |
口腔科学 | 203篇 |
临床医学 | 523篇 |
内科学 | 1982篇 |
皮肤病学 | 80篇 |
神经病学 | 595篇 |
特种医学 | 314篇 |
外科学 | 1308篇 |
综合类 | 37篇 |
一般理论 | 2篇 |
预防医学 | 152篇 |
眼科学 | 519篇 |
药学 | 427篇 |
中国医学 | 12篇 |
肿瘤学 | 859篇 |
出版年
2022年 | 65篇 |
2021年 | 124篇 |
2020年 | 56篇 |
2019年 | 101篇 |
2018年 | 108篇 |
2017年 | 104篇 |
2016年 | 153篇 |
2015年 | 124篇 |
2014年 | 178篇 |
2013年 | 193篇 |
2012年 | 326篇 |
2011年 | 337篇 |
2010年 | 214篇 |
2009年 | 176篇 |
2008年 | 329篇 |
2007年 | 334篇 |
2006年 | 357篇 |
2005年 | 332篇 |
2004年 | 337篇 |
2003年 | 329篇 |
2002年 | 357篇 |
2001年 | 304篇 |
2000年 | 327篇 |
1999年 | 269篇 |
1998年 | 93篇 |
1997年 | 79篇 |
1996年 | 68篇 |
1995年 | 63篇 |
1994年 | 61篇 |
1993年 | 57篇 |
1992年 | 194篇 |
1991年 | 171篇 |
1990年 | 153篇 |
1989年 | 169篇 |
1988年 | 153篇 |
1987年 | 101篇 |
1986年 | 136篇 |
1985年 | 124篇 |
1984年 | 83篇 |
1983年 | 77篇 |
1979年 | 73篇 |
1978年 | 43篇 |
1977年 | 46篇 |
1974年 | 47篇 |
1973年 | 49篇 |
1972年 | 45篇 |
1971年 | 59篇 |
1970年 | 38篇 |
1969年 | 41篇 |
1968年 | 44篇 |
排序方式: 共有8045条查询结果,搜索用时 15 毫秒
991.
992.
T Itoh S Tanaka M Nakanishi K Nishiyama N Kitajima Y Kinoshita T Inatome T Inoh H Fukuzaki 《Lymphology》1991,24(4):168-173
A 79-year-old man with primary chylopericardium associated with large granular lymphocytosis was followed for more than 26 years. Except for development of dyspnea on exertion during the past four years and more recently cough with sputum production, he has remained largely asymptomatic over this interval. Based on detailed examinations of cellular and humoral immunity, we speculate that increased natural killer cell activity and an increased number of large granular lymphocytes circulating in his peripheral blood represent a reactive response to production of various cytokines secondary to persistent loss (? chyloptysis) and sequestration of central lymph. 相似文献
993.
In an in vivo cat model, wide-field specular microscopy and scanning electron microscopy were used to observe whether heat-denatured sodium hyaluronate causes cell damage to the corneal endothelium. The endothelial cell toxicities of various drugs, including 0.01% benzalkonium chloride, 0.2% chlorhexidine digluconate, and 0.5% lidocaine, mixed with intact or untreated sodium hyaluronate were also investigated. Neither heat-denatured nor intact or untreated sodium hyaluronate alone had any adverse effect on the corneal endothelium in cats, whereas 0.01% benzalkonium chloride and 0.2% chlorhexidine digluconate, mixed with sodium hyaluronate, caused substantial endothelial morphologic changes, which resulted in corneal edema. By comparison, 0.5% lidocaine with sodium hyaluronate was found to have minimal effect on the corneal endothelium in cats. These findings indicate that some chemical contaminant with sodium hyaluronate, not heat-denatured sodium hyaluronate, induces an immediate onset of pseudophakic bullous keratopathy. 相似文献
994.
Naoki Kanemitsu Akitoshi Tatsumi Takasumi Nakamura Fumio Kitamura 《General thoracic and cardiovascular surgery》1998,46(10):1020-1023
A case is 40-year-old man. He presented anterior chest pain. Pericardial effusion was pointed out and a tuberculin skin test was positive. Tuberculous pericarditis was highly suspected, so INH and RFP were medicated. After 6-month medication pericardial effusion decreased, but right pleural effusion appeared on chest X-ray. Chest CT revealed a thickening of pericardium extend to anterior mediastinal mass. Echocardiogram revealed a pressure gradient in right ventricle, which was compressed by the thickened pericardium. We underwent median sternotomy in order to rule out neoplastic diseases. Intraoperative pathologic diagnosis was granulomatous mediastinitis and pericarditis, so we resected granuloma as much as possible to decompress the heart. Although Mycobacterium tuberculosis was not found in the resected granuloma, it was most probable pathogen. He received additional antituberculous chemotherapy for 6 months. 相似文献
995.
996.
997.
Toshihiro Fukui Shigefumi Suehiro Toshihiko Shibata Yasuyuki Sasaki Hirokazu Minamimura Hiroaki Kinoshita 《Surgery today》1998,28(3):321-324
(Received for publication on Oct. 14, 1996; accepted on Mar. 4, 1997) 相似文献
998.
Kaori Kinoshita Masanori Minagawa Michiko Anzai Yumiko Sato Itsuro Kazukawa Kyoko Shimohashi Setsuo Ota Yoichi Kohno 《Clinical Pediatric Endocrinology》2007,16(1):31-36
Pseudohypoparathyroidism (PHP) is a metabolic disorder characterized by organ resistance
to the action of parathyroid hormone. PHP type 1 is subclassified into two apparent
disorders, type 1a (PHP1a) and type 1b (PHP1b). Patients with PHP1a show Albright
hereditary osteodystrophy including short stature. Patients with PHP1b have no such
skeletal defects, however, literature regarding the growth of PHP1b is not currently
available. We evaluated growth charts of PHP patients, including four PHP1a patients and
six PHP1b patients. Growth patterns were different between PHP type 1a and 1b. Adult
height was abnormally low in all PHP1a patients. The growth pattern of PHP1a was
characterized by mild growth impairment in the prepubertal period, a blunted growth spurt
and premature cessation of the growth spurt. The adult height of male PHP1b was slightly
lower than average. An early growth spurt was observed only in male patients with PHP1b
and it may reduce the adult height of male patients with PHP1b. This warrants further
investigation into the growth and pubertal development of PHP1b patients. 相似文献
999.
Hiromu Tanaka Kazuhiro Hirohashi Yasuhiro Ohta Eiji Kimura Taichi Shuto Akishige Kanazawa Takatsugu Yamamoto Hiroaki Kinoshita 《Journal of Hepato-Biliary-Pancreatic Surgery》1995,2(4):451-456
Hilar bile duct carcinoma has a poor prognosis, but this has been improved in recent years by an aggressive surgical approach.
We treated a 73-year-old woman who had obstructive jaundice due to bile duct carcinoma at the hepatic hilum. The jaundice
decreased after percutaneous transhepatic biliary drainage. The tumor was resected with the left and caudate lobe of the liver
and a part of portal vein. The right hepatic artery was located behind the common hepatic duct, and was suspected to be invaded
by the tumor. We dissected the tumor from the arterial wall without carrying out combined resection of the hepatic artery.
On the 6th postoperative day, the hepatic artery ruptured and the patient suffered hypovolemic shock. Resection of the hepatic
artery and reconstruction were done, but the patient died 2 days later. Histological examination of the resected artery showed
that the tumor had been curatively removed by dissection and that no tumor remained at the arterial wall. The rupture of the
right hepatic artery was thought to have been caused by damage to the wall during the dissection procedure. 相似文献
1000.